ICEQC-R-2013-03 — Instructional Time Lost to Disruption: A Measurement and Reporting Framework

Scheduled time is the authorised opportunity established by calendar and timetable. This is the measured proposition for scheduled instructional time. The reporting standard for scheduled instructional time therefore requires that the record should identify the learner population, site or route, grade or subject where material, and reference period. For learners affected by scheduled instructional time, a status assigned at national or district level should not be extended to a local service without evidence. Within authorities responsible for scheduled instructional time, the source and date should remain visible beside the measure.[REF-15] [REF-21] [REF-52] [REF-105]

The principal distortion risk is that official days or hours can be reported as delivery when institutions close, start late or shorten sessions. In scheduled instructional time, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by scheduled instructional time, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for scheduled instructional time, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-21] [REF-52] [REF-105]

The specification is to state annual days, weekly hours, subject allocation, grade, shift and authorised exceptions. For learners affected by scheduled instructional time, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for scheduled instructional time, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For scheduled instructional time, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-21] [REF-52] [REF-105]

Validation of scheduled instructional time should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Within authorities responsible for scheduled instructional time, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. For scheduled instructional time, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-21] [REF-52] [REF-105]

The interpretive rule is to use scheduled time as the denominator for loss and not as evidence that teaching occurred. For scheduled instructional time, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring scheduled instructional time, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to scheduled instructional time, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-21] [REF-52] [REF-105]

Correction concerning scheduled instructional time should restore educational opportunity and not only amend the indicator. In measuring scheduled instructional time, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to scheduled instructional time, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for scheduled instructional time therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-21] [REF-52] [REF-105]

A further interval test for scheduled instructional time should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for scheduled instructional time should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within scheduled instructional time for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for scheduled instructional time should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for scheduled instructional time should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for scheduled instructional time reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for scheduled instructional time should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for scheduled instructional time should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of scheduled instructional time should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Available time is the portion of the schedule during which an accessible and safe learning service is open. This is the measured proposition for available institutional time. For learners affected by available institutional time, the record should identify the learner population, site or route, grade or subject where material, and reference period. Within authorities responsible for available institutional time, a status assigned at national or district level should not be extended to a local service without evidence. For available institutional time, the source and date should remain visible beside the measure.[REF-03] [REF-15] [REF-46] [REF-52]

The specification is to record actual opening by site and shift together with access restrictions and partial capacity. For learners affected by available institutional time, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for available institutional time, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For available institutional time, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-03] [REF-15] [REF-46] [REF-52]

The principal distortion risk is that an institution may be formally open while routes, buildings, sanitation or learner capacity are unusable. In available institutional time, definitions can change whether an interval is classified as expected, lost, substituted or restored. For available institutional time, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring available institutional time, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-03] [REF-15] [REF-46] [REF-52]

Validation of available institutional time should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For available institutional time, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring available institutional time, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-03] [REF-15] [REF-46] [REF-52]

Correction concerning available institutional time should restore educational opportunity and not only amend the indicator. In measuring available institutional time, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to available institutional time, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for available institutional time therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-03] [REF-15] [REF-46] [REF-52]

A further interval test for available institutional time should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for available institutional time should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within available institutional time for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for available institutional time should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for available institutional time should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for available institutional time reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for available institutional time should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for available institutional time should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of available institutional time should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to separate complete closure from reduced availability and identify the learners for whom the service was not usable. Applied to available institutional time, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for available institutional time therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by available institutional time, the report should identify what is established, what is inferred and which corrective decision follows.[REF-03] [REF-15] [REF-46] [REF-52]

Delivered time is the period in which a competent teacher or authorised alternative provides purposeful instruction. This is the measured proposition for delivered teaching time. Within authorities responsible for delivered teaching time, the record should identify the learner population, site or route, grade or subject where material, and reference period. For delivered teaching time, a status assigned at national or district level should not be extended to a local service without evidence. In measuring delivered teaching time, the source and date should remain visible beside the measure.[REF-15] [REF-97] [REF-98] [REF-105]

The principal distortion risk is that staff presence and an open classroom can be counted without evidence that teaching took place for the planned duration. In delivered teaching time, definitions can change whether an interval is classified as expected, lost, substituted or restored. For delivered teaching time, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring delivered teaching time, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-97] [REF-98] [REF-105]

Validation of delivered teaching time should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For delivered teaching time, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring delivered teaching time, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-97] [REF-98] [REF-105]

The specification is to record start, end, teacher, group, subject or learning purpose and material interruption. In measuring delivered teaching time, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Applied to delivered teaching time, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. The reporting standard for delivered teaching time therefore requires that the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-97] [REF-98] [REF-105]

The interpretive rule is to compare delivered with available and scheduled time and investigate repeated gaps by location and subject. Applied to delivered teaching time, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for delivered teaching time therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by delivered teaching time, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-97] [REF-98] [REF-105]

Correction concerning delivered teaching time should restore educational opportunity and not only amend the indicator. The reporting standard for delivered teaching time therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by delivered teaching time, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for delivered teaching time, closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-97] [REF-98] [REF-105]

A further interval test for delivered teaching time should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for delivered teaching time should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within delivered teaching time for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for delivered teaching time should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for delivered teaching time should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for delivered teaching time reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for delivered teaching time should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for delivered teaching time should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of delivered teaching time should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Attendance time is the portion of delivered provision in which the learner is present and able to participate. This is the measured proposition for learner attendance time. For learner attendance time, the record should identify the learner population, site or route, grade or subject where material, and reference period. In measuring learner attendance time, a status assigned at national or district level should not be extended to a local service without evidence. Applied to learner attendance time, the source and date should remain visible beside the measure.[REF-03] [REF-10] [REF-21] [REF-52]

Validation of learner attendance time should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learner attendance time, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring learner attendance time, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-03] [REF-10] [REF-21] [REF-52]

The principal distortion risk is that daily presence codes conceal late arrival, early departure, inaccessible activities and movement between temporary sites. In learner attendance time, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to learner attendance time, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for learner attendance time therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-03] [REF-10] [REF-21] [REF-52]

The specification is to record attendance at a granularity proportionate to interruption risk and protect sensitive reasons. Applied to learner attendance time, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for learner attendance time therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by learner attendance time, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-03] [REF-10] [REF-21] [REF-52]

Correction concerning learner attendance time should restore educational opportunity and not only amend the indicator. The reporting standard for learner attendance time therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by learner attendance time, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for learner attendance time, closure should retain any unrecovered time or progression consequence in the public account.[REF-03] [REF-10] [REF-21] [REF-52]

A further interval test for learner attendance time should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for learner attendance time should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within learner attendance time for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for learner attendance time should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for learner attendance time should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for learner attendance time reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for learner attendance time should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for learner attendance time should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of learner attendance time should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to distinguish service loss from individual absence and examine their interaction across learner groups. For learners affected by learner attendance time, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for learner attendance time, comparisons require aligned schedules, units, grades, shifts and reference periods. For learner attendance time, the report should identify what is established, what is inferred and which corrective decision follows.[REF-03] [REF-10] [REF-21] [REF-52]

Time in a room becomes educationally meaningful when learners engage with suitable teaching, practice and feedback. This is the measured proposition for purposeful learning time. In measuring purposeful learning time, the record should identify the learner population, site or route, grade or subject where material, and reference period. Applied to purposeful learning time, a status assigned at national or district level should not be extended to a local service without evidence. The reporting standard for purposeful learning time therefore requires that the source and date should remain visible beside the measure.[REF-15] [REF-41] [REF-96] [REF-105]

The principal distortion risk is that nominal recovery can fill hours with supervision, copying or rushed coverage that does not restore learning. In purposeful learning time, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to purposeful learning time, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for purposeful learning time therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-41] [REF-96] [REF-105]

The specification is to use observation and learner work to test the substantive use of selected periods without claiming a universal minute count. Applied to purposeful learning time, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for purposeful learning time therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by purposeful learning time, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-41] [REF-96] [REF-105]

Validation of purposeful learning time should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. The reporting standard for purposeful learning time therefore requires that reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. For learners affected by purposeful learning time, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-41] [REF-96] [REF-105]

The interpretive rule is to interpret quantity beside curriculum coverage, task quality, feedback and learner progress. For learners affected by purposeful learning time, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for purposeful learning time, comparisons require aligned schedules, units, grades, shifts and reference periods. For purposeful learning time, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-41] [REF-96] [REF-105]

Correction concerning purposeful learning time should restore educational opportunity and not only amend the indicator. Within authorities responsible for purposeful learning time, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For purposeful learning time, later provision should be tested for attendance and substantive connection to the loss. In measuring purposeful learning time, closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-41] [REF-96] [REF-105]

A further interval test for purposeful learning time should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for purposeful learning time should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within purposeful learning time for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for purposeful learning time should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for purposeful learning time should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for purposeful learning time reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for purposeful learning time should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for purposeful learning time should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of purposeful learning time should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Days, sessions, periods, hours and learner-hours can all be valid when definition and conversion are controlled. This is the measured proposition for time units and conversion. Applied to time units and conversion, the record should identify the learner population, site or route, grade or subject where material, and reference period. The reporting standard for time units and conversion therefore requires that a status assigned at national or district level should not be extended to a local service without evidence. For learners affected by time units and conversion, the source and date should remain visible beside the measure.[REF-21] [REF-48] [REF-52] [REF-105]

The specification is to retain the original unit, publish duration and conversion rule and use learner-time where population exposure matters. Applied to time units and conversion, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for time units and conversion therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by time units and conversion, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-21] [REF-48] [REF-52] [REF-105]

The principal distortion risk is that conversion assumes equal day length and can hide shift differences, partial loss and unequal exposure. In time units and conversion, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by time units and conversion, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for time units and conversion, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-21] [REF-48] [REF-52] [REF-105]

Validation of time units and conversion should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learners affected by time units and conversion, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Within authorities responsible for time units and conversion, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-21] [REF-48] [REF-52] [REF-105]

Correction concerning time units and conversion should restore educational opportunity and not only amend the indicator. Within authorities responsible for time units and conversion, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For time units and conversion, later provision should be tested for attendance and substantive connection to the loss. In measuring time units and conversion, closure should retain any unrecovered time or progression consequence in the public account.[REF-21] [REF-48] [REF-52] [REF-105]

A further interval test for time units and conversion should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for time units and conversion should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within time units and conversion for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for time units and conversion should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for time units and conversion should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for time units and conversion reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for time units and conversion should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for time units and conversion should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of time units and conversion should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to avoid combining units until equivalence is established and preserve rounding and missingness information. For time units and conversion, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring time units and conversion, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to time units and conversion, the report should identify what is established, what is inferred and which corrective decision follows.[REF-21] [REF-48] [REF-52] [REF-105]

Closure removes all scheduled provision at a site for a defined period. This is the measured proposition for complete institutional closure. The reporting standard for complete institutional closure therefore requires that the record should identify the learner population, site or route, grade or subject where material, and reference period. For learners affected by complete institutional closure, a status assigned at national or district level should not be extended to a local service without evidence. Within authorities responsible for complete institutional closure, the source and date should remain visible beside the measure.[REF-29] [REF-41] [REF-47] [REF-105]

The principal distortion risk is that national closure totals overlook local sites and may count weekends or planned breaks as loss. In complete institutional closure, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by complete institutional closure, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for complete institutional closure, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-29] [REF-41] [REF-47] [REF-105]

Validation of complete institutional closure should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learners affected by complete institutional closure, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Within authorities responsible for complete institutional closure, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-29] [REF-41] [REF-47] [REF-105]

The specification is to record site, shift, start, end, authority, cause, learners and substitute provision. Within authorities responsible for complete institutional closure, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. For complete institutional closure, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. In measuring complete institutional closure, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-29] [REF-41] [REF-47] [REF-105]

The interpretive rule is to calculate only scheduled time within the closure interval and separate recovered time later delivered. For complete institutional closure, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring complete institutional closure, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to complete institutional closure, the report should identify what is established, what is inferred and which corrective decision follows.[REF-29] [REF-41] [REF-47] [REF-105]

Correction concerning complete institutional closure should restore educational opportunity and not only amend the indicator. In measuring complete institutional closure, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to complete institutional closure, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for complete institutional closure therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-29] [REF-41] [REF-47] [REF-105]

A further interval test for complete institutional closure should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for complete institutional closure should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within complete institutional closure for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for complete institutional closure should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for complete institutional closure should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for complete institutional closure reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for complete institutional closure should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for complete institutional closure should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of complete institutional closure should show who attended the restoration, what was taught and which progression consequence remains unresolved.

A site can operate for some grades, shifts or learners while others lose access. This is the measured proposition for partial closure and reduced capacity. For learners affected by partial closure and reduced capacity, the record should identify the learner population, site or route, grade or subject where material, and reference period. Within authorities responsible for partial closure and reduced capacity, a status assigned at national or district level should not be extended to a local service without evidence. For partial closure and reduced capacity, the source and date should remain visible beside the measure.[REF-15] [REF-46] [REF-52] [REF-105]

Validation of partial closure and reduced capacity should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learners affected by partial closure and reduced capacity, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Within authorities responsible for partial closure and reduced capacity, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-46] [REF-52] [REF-105]

The principal distortion risk is that binary open or closed status classifies reduced capacity as full continuity. In partial closure and reduced capacity, definitions can change whether an interval is classified as expected, lost, substituted or restored. For partial closure and reduced capacity, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring partial closure and reduced capacity, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-46] [REF-52] [REF-105]

The specification is to record the operating component, unavailable component, capacity, allocation rule and affected learners. For partial closure and reduced capacity, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. In measuring partial closure and reduced capacity, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Applied to partial closure and reduced capacity, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-46] [REF-52] [REF-105]

Correction concerning partial closure and reduced capacity should restore educational opportunity and not only amend the indicator. In measuring partial closure and reduced capacity, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to partial closure and reduced capacity, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for partial closure and reduced capacity therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-46] [REF-52] [REF-105]

A further interval test for partial closure and reduced capacity should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for partial closure and reduced capacity should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within partial closure and reduced capacity for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for partial closure and reduced capacity should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for partial closure and reduced capacity should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for partial closure and reduced capacity reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for partial closure and reduced capacity should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for partial closure and reduced capacity should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of partial closure and reduced capacity should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to compute loss for each group and examine whether scarcity was distributed equitably. Applied to partial closure and reduced capacity, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for partial closure and reduced capacity therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by partial closure and reduced capacity, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-46] [REF-52] [REF-105]

Time is lost when scheduled teaching lacks a competent assigned teacher or a credible substitute. This is the measured proposition for teacher vacancy and absence. Within authorities responsible for teacher vacancy and absence, the record should identify the learner population, site or route, grade or subject where material, and reference period. For teacher vacancy and absence, a status assigned at national or district level should not be extended to a local service without evidence. In measuring teacher vacancy and absence, the source and date should remain visible beside the measure.[REF-97] [REF-98] [REF-102] [REF-105]

The principal distortion risk is that payroll positions and daily presence totals conceal vacancy days, subject gaps and unsupported supervision. In teacher vacancy and absence, definitions can change whether an interval is classified as expected, lost, substituted or restored. For teacher vacancy and absence, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring teacher vacancy and absence, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-97] [REF-98] [REF-102] [REF-105]

The specification is to record position, subject, group, scheduled period, delivered substitute and reason at suitable aggregation. For teacher vacancy and absence, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. In measuring teacher vacancy and absence, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Applied to teacher vacancy and absence, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-97] [REF-98] [REF-102] [REF-105]

Validation of teacher vacancy and absence should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. In measuring teacher vacancy and absence, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Applied to teacher vacancy and absence, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-97] [REF-98] [REF-102] [REF-105]

The interpretive rule is to distinguish vacancy, authorised absence, unexplained absence and alternative teaching and connect each to staffing action. Applied to teacher vacancy and absence, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for teacher vacancy and absence therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by teacher vacancy and absence, the report should identify what is established, what is inferred and which corrective decision follows.[REF-97] [REF-98] [REF-102] [REF-105]

Correction concerning teacher vacancy and absence should restore educational opportunity and not only amend the indicator. The reporting standard for teacher vacancy and absence therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by teacher vacancy and absence, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for teacher vacancy and absence, closure should retain any unrecovered time or progression consequence in the public account.[REF-97] [REF-98] [REF-102] [REF-105]

A further interval test for teacher vacancy and absence should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for teacher vacancy and absence should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within teacher vacancy and absence for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for teacher vacancy and absence should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for teacher vacancy and absence should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for teacher vacancy and absence reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for teacher vacancy and absence should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for teacher vacancy and absence should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of teacher vacancy and absence should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Small recurrent reductions accumulate into substantial lost instruction. This is the measured proposition for late start, early finish and shortened day. For late start, early finish and shortened day, the record should identify the learner population, site or route, grade or subject where material, and reference period. In measuring late start, early finish and shortened day, a status assigned at national or district level should not be extended to a local service without evidence. Applied to late start, early finish and shortened day, the source and date should remain visible beside the measure.[REF-15] [REF-21] [REF-99] [REF-101]

The specification is to sample or record actual session duration and reasons, with attention to transport, safety, double shifts and utilities. For late start, early finish and shortened day, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. In measuring late start, early finish and shortened day, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Applied to late start, early finish and shortened day, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-21] [REF-99] [REF-101]

The principal distortion risk is that daily attendance and annual calendars miss minutes removed at the edges of the day or by compressed shifts. In late start, early finish and shortened day, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to late start, early finish and shortened day, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for late start, early finish and shortened day therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-21] [REF-99] [REF-101]

Validation of late start, early finish and shortened day should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Applied to late start, early finish and shortened day, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. The reporting standard for late start, early finish and shortened day therefore requires that contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-21] [REF-99] [REF-101]

Correction concerning late start, early finish and shortened day should restore educational opportunity and not only amend the indicator. The reporting standard for late start, early finish and shortened day therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by late start, early finish and shortened day, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for late start, early finish and shortened day, closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-21] [REF-99] [REF-101]

A further interval test for late start, early finish and shortened day should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for late start, early finish and shortened day should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within late start, early finish and shortened day for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for late start, early finish and shortened day should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for late start, early finish and shortened day should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for late start, early finish and shortened day reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for late start, early finish and shortened day should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for late start, early finish and shortened day should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of late start, early finish and shortened day should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to aggregate recurrent loss and determine whether it affects particular grades, subjects or learner groups. For learners affected by late start, early finish and shortened day, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for late start, early finish and shortened day, comparisons require aligned schedules, units, grades, shifts and reference periods. For late start, early finish and shortened day, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-21] [REF-99] [REF-101]

Security events, movement, administration, noise, overcrowding or material failure can interrupt an open lesson. This is the measured proposition for interruption within lessons. In measuring interruption within lessons, the record should identify the learner population, site or route, grade or subject where material, and reference period. Applied to interruption within lessons, a status assigned at national or district level should not be extended to a local service without evidence. The reporting standard for interruption within lessons therefore requires that the source and date should remain visible beside the measure.[REF-15] [REF-41] [REF-52] [REF-105]

The principal distortion risk is that observation may treat a disrupted period as delivered because a teacher and learners remain present. In interruption within lessons, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to interruption within lessons, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for interruption within lessons therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-41] [REF-52] [REF-105]

Validation of interruption within lessons should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Applied to interruption within lessons, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. The reporting standard for interruption within lessons therefore requires that contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-41] [REF-52] [REF-105]

The specification is to classify material interruption by duration and consequence without imposing burdensome minute-by-minute reporting. The reporting standard for interruption within lessons therefore requires that the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. For learners affected by interruption within lessons, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Within authorities responsible for interruption within lessons, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-41] [REF-52] [REF-105]

The interpretive rule is to use samples to identify recurring correctable loss and avoid extrapolation beyond the observed setting. For learners affected by interruption within lessons, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for interruption within lessons, comparisons require aligned schedules, units, grades, shifts and reference periods. For interruption within lessons, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-41] [REF-52] [REF-105]

Correction concerning interruption within lessons should restore educational opportunity and not only amend the indicator. Within authorities responsible for interruption within lessons, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For interruption within lessons, later provision should be tested for attendance and substantive connection to the loss. In measuring interruption within lessons, closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-41] [REF-52] [REF-105]

A further interval test for interruption within lessons should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for interruption within lessons should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within interruption within lessons for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for interruption within lessons should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for interruption within lessons should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for interruption within lessons reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for interruption within lessons should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for interruption within lessons should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of interruption within lessons should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Learners lose time between departure, registration, placement and sustained attendance at a receiving service. This is the measured proposition for displacement, transfer and delayed placement. Applied to displacement, transfer and delayed placement, the record should identify the learner population, site or route, grade or subject where material, and reference period. The reporting standard for displacement, transfer and delayed placement therefore requires that a status assigned at national or district level should not be extended to a local service without evidence. For learners affected by displacement, transfer and delayed placement, the source and date should remain visible beside the measure.[REF-14] [REF-99] [REF-101] [REF-102]

Validation of displacement, transfer and delayed placement should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Applied to displacement, transfer and delayed placement, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. The reporting standard for displacement, transfer and delayed placement therefore requires that contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-14] [REF-99] [REF-101] [REF-102]

The principal distortion risk is that origin records, humanitarian registration and host-school data leave gaps between institutions. In displacement, transfer and delayed placement, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by displacement, transfer and delayed placement, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for displacement, transfer and delayed placement, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-14] [REF-99] [REF-101] [REF-102]

The specification is to record last attendance, request, admission decision, first attendance and later continuity under privacy controls. For learners affected by displacement, transfer and delayed placement, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for displacement, transfer and delayed placement, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For displacement, transfer and delayed placement, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-14] [REF-99] [REF-101] [REF-102]

Correction concerning displacement, transfer and delayed placement should restore educational opportunity and not only amend the indicator. Within authorities responsible for displacement, transfer and delayed placement, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For displacement, transfer and delayed placement, later provision should be tested for attendance and substantive connection to the loss. In measuring displacement, transfer and delayed placement, closure should retain any unrecovered time or progression consequence in the public account.[REF-14] [REF-99] [REF-101] [REF-102]

A further interval test for displacement, transfer and delayed placement should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for displacement, transfer and delayed placement should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within displacement, transfer and delayed placement for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for displacement, transfer and delayed placement should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for displacement, transfer and delayed placement should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for displacement, transfer and delayed placement reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for displacement, transfer and delayed placement should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for displacement, transfer and delayed placement should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of displacement, transfer and delayed placement should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to measure transition loss and identify documentation, capacity, language, cost or movement as separate causes. For displacement, transfer and delayed placement, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring displacement, transfer and delayed placement, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to displacement, transfer and delayed placement, the report should identify what is established, what is inferred and which corrective decision follows.[REF-14] [REF-99] [REF-101] [REF-102]

Authorised calendars and timetables establish expected opportunity for each grade, subject and shift. This is the measured proposition for official calendars and timetables. The reporting standard for official calendars and timetables therefore requires that the record should identify the learner population, site or route, grade or subject where material, and reference period. For learners affected by official calendars and timetables, a status assigned at national or district level should not be extended to a local service without evidence. Within authorities responsible for official calendars and timetables, the source and date should remain visible beside the measure.[REF-21] [REF-52] [REF-105]

The principal distortion risk is that documents may be outdated, locally varied or revised after disruption without a preserved prior version. In official calendars and timetables, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by official calendars and timetables, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for official calendars and timetables, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-21] [REF-52] [REF-105]

The specification is to retain approved versions, dates, exceptions and site-specific adaptations and link them to the affected cohort. For learners affected by official calendars and timetables, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for official calendars and timetables, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For official calendars and timetables, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-21] [REF-52] [REF-105]

Validation of official calendars and timetables should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Within authorities responsible for official calendars and timetables, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. For official calendars and timetables, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-21] [REF-52] [REF-105]

The interpretive rule is to verify that the document was operative and distinguish planned reduction from unplanned loss. For official calendars and timetables, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring official calendars and timetables, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to official calendars and timetables, the report should identify what is established, what is inferred and which corrective decision follows.[REF-21] [REF-52] [REF-105]

Correction concerning official calendars and timetables should restore educational opportunity and not only amend the indicator. In measuring official calendars and timetables, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to official calendars and timetables, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for official calendars and timetables therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-21] [REF-52] [REF-105]

A further interval test for official calendars and timetables should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for official calendars and timetables should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within official calendars and timetables for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for official calendars and timetables should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for official calendars and timetables should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for official calendars and timetables reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for official calendars and timetables should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for official calendars and timetables should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of official calendars and timetables should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Site logs and authority notices can establish closure and reopening when dates and scope are clear. This is the measured proposition for institution opening records. For learners affected by institution opening records, the record should identify the learner population, site or route, grade or subject where material, and reference period. Within authorities responsible for institution opening records, a status assigned at national or district level should not be extended to a local service without evidence. For institution opening records, the source and date should remain visible beside the measure.[REF-41] [REF-46] [REF-52] [REF-105]

The specification is to maintain dated site and shift status with authority, reason, capacity and substitute arrangement. For learners affected by institution opening records, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for institution opening records, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For institution opening records, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-41] [REF-46] [REF-52] [REF-105]

The principal distortion risk is that notices may describe a whole district while individual institutions differ or reopening is only partial. In institution opening records, definitions can change whether an interval is classified as expected, lost, substituted or restored. For institution opening records, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring institution opening records, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-41] [REF-46] [REF-52] [REF-105]

Validation of institution opening records should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For institution opening records, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring institution opening records, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-41] [REF-46] [REF-52] [REF-105]

Correction concerning institution opening records should restore educational opportunity and not only amend the indicator. In measuring institution opening records, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to institution opening records, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for institution opening records therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-41] [REF-46] [REF-52] [REF-105]

A further interval test for institution opening records should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for institution opening records should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within institution opening records for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for institution opening records should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for institution opening records should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for institution opening records reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for institution opening records should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for institution opening records should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of institution opening records should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to corroborate a sample with staff, learner and community evidence and resolve contradictions. Applied to institution opening records, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for institution opening records therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by institution opening records, the report should identify what is established, what is inferred and which corrective decision follows.[REF-41] [REF-46] [REF-52] [REF-105]

Staff records help establish whether scheduled instruction had an assigned and present teacher. This is the measured proposition for teacher assignment and attendance records. Within authorities responsible for teacher assignment and attendance records, the record should identify the learner population, site or route, grade or subject where material, and reference period. For teacher assignment and attendance records, a status assigned at national or district level should not be extended to a local service without evidence. In measuring teacher assignment and attendance records, the source and date should remain visible beside the measure.[REF-97] [REF-98] [REF-102] [REF-105]

The principal distortion risk is that sign-in or payroll evidence does not show classroom assignment, duration or substantive teaching. In teacher assignment and attendance records, definitions can change whether an interval is classified as expected, lost, substituted or restored. For teacher assignment and attendance records, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring teacher assignment and attendance records, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-97] [REF-98] [REF-102] [REF-105]

Validation of teacher assignment and attendance records should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For teacher assignment and attendance records, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring teacher assignment and attendance records, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-97] [REF-98] [REF-102] [REF-105]

The specification is to link teacher identity or protected code, qualification, subject, group, schedule, presence and substitute. In measuring teacher assignment and attendance records, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Applied to teacher assignment and attendance records, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. The reporting standard for teacher assignment and attendance records therefore requires that the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-97] [REF-98] [REF-102] [REF-105]

The interpretive rule is to sample records against classroom evidence and analyse systematic gaps without exposing personnel unnecessarily. Applied to teacher assignment and attendance records, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for teacher assignment and attendance records therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by teacher assignment and attendance records, the report should identify what is established, what is inferred and which corrective decision follows.[REF-97] [REF-98] [REF-102] [REF-105]

Correction concerning teacher assignment and attendance records should restore educational opportunity and not only amend the indicator. The reporting standard for teacher assignment and attendance records therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by teacher assignment and attendance records, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for teacher assignment and attendance records, closure should retain any unrecovered time or progression consequence in the public account.[REF-97] [REF-98] [REF-102] [REF-105]

A further interval test for teacher assignment and attendance records should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for teacher assignment and attendance records should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within teacher assignment and attendance records for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for teacher assignment and attendance records should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for teacher assignment and attendance records should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for teacher assignment and attendance records reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for teacher assignment and attendance records should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for teacher assignment and attendance records should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of teacher assignment and attendance records should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Learner records reveal who was exposed to available and delivered provision over time. This is the measured proposition for learner registers and attendance histories. For learner registers and attendance histories, the record should identify the learner population, site or route, grade or subject where material, and reference period. In measuring learner registers and attendance histories, a status assigned at national or district level should not be extended to a local service without evidence. Applied to learner registers and attendance histories, the source and date should remain visible beside the measure.[REF-03] [REF-14] [REF-99] [REF-107]

Validation of learner registers and attendance histories should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learner registers and attendance histories, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring learner registers and attendance histories, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-03] [REF-14] [REF-99] [REF-107]

The principal distortion risk is that damaged records, changing identifiers and transfer create duplication, disappearance and false continuous enrolment. In learner registers and attendance histories, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to learner registers and attendance histories, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for learner registers and attendance histories therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-03] [REF-14] [REF-99] [REF-107]

The specification is to preserve dated status, attendance, transfer and revision under clear identity and privacy controls. Applied to learner registers and attendance histories, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for learner registers and attendance histories therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by learner registers and attendance histories, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-03] [REF-14] [REF-99] [REF-107]

Correction concerning learner registers and attendance histories should restore educational opportunity and not only amend the indicator. The reporting standard for learner registers and attendance histories therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by learner registers and attendance histories, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for learner registers and attendance histories, closure should retain any unrecovered time or progression consequence in the public account.[REF-03] [REF-14] [REF-99] [REF-107]

A further interval test for learner registers and attendance histories should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for learner registers and attendance histories should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within learner registers and attendance histories for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for learner registers and attendance histories should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for learner registers and attendance histories should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for learner registers and attendance histories reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for learner registers and attendance histories should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for learner registers and attendance histories should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of learner registers and attendance histories should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to reconcile origin, receiving and humanitarian sources and retain unknown status instead of assuming dropout. For learners affected by learner registers and attendance histories, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for learner registers and attendance histories, comparisons require aligned schedules, units, grades, shifts and reference periods. For learner registers and attendance histories, the report should identify what is established, what is inferred and which corrective decision follows.[REF-03] [REF-14] [REF-99] [REF-107]

Observation and sequences of work test whether reported time contained purposeful teaching and feedback. This is the measured proposition for observation and learner work. In measuring observation and learner work, the record should identify the learner population, site or route, grade or subject where material, and reference period. Applied to observation and learner work, a status assigned at national or district level should not be extended to a local service without evidence. The reporting standard for observation and learner work therefore requires that the source and date should remain visible beside the measure.[REF-15] [REF-41] [REF-52] [REF-96]

The principal distortion risk is that short announced visits can overstate typical use and cannot quantify all annual loss. In observation and learner work, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to observation and learner work, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for observation and learner work therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-41] [REF-52] [REF-96]

The specification is to sample contrasting sites, subjects and periods and examine task, interaction, interruption, work and feedback. Applied to observation and learner work, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for observation and learner work therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by observation and learner work, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-41] [REF-52] [REF-96]

Validation of observation and learner work should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. The reporting standard for observation and learner work therefore requires that reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. For learners affected by observation and learner work, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-41] [REF-52] [REF-96]

The interpretive rule is to use observation to interpret administrative time and not to claim precise annual totals without a defensible design. For learners affected by observation and learner work, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for observation and learner work, comparisons require aligned schedules, units, grades, shifts and reference periods. For observation and learner work, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-41] [REF-52] [REF-96]

Correction concerning observation and learner work should restore educational opportunity and not only amend the indicator. Within authorities responsible for observation and learner work, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For observation and learner work, later provision should be tested for attendance and substantive connection to the loss. In measuring observation and learner work, closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-41] [REF-52] [REF-96]

A further interval test for observation and learner work should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for observation and learner work should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within observation and learner work for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for observation and learner work should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for observation and learner work should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for observation and learner work reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for observation and learner work should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for observation and learner work should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of observation and learner work should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Families and humanitarian bodies can identify inaccessible services and displaced learners outside current school records. This is the measured proposition for household and humanitarian evidence. Applied to household and humanitarian evidence, the record should identify the learner population, site or route, grade or subject where material, and reference period. The reporting standard for household and humanitarian evidence therefore requires that a status assigned at national or district level should not be extended to a local service without evidence. For learners affected by household and humanitarian evidence, the source and date should remain visible beside the measure.[REF-45] [REF-99] [REF-100] [REF-101]

The specification is to use bounded reference periods, protected questions and documented definitions linked to education status. Applied to household and humanitarian evidence, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for household and humanitarian evidence therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by household and humanitarian evidence, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-45] [REF-99] [REF-100] [REF-101]

The principal distortion risk is that recall error, changing location and different sector definitions complicate direct comparison. In household and humanitarian evidence, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by household and humanitarian evidence, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for household and humanitarian evidence, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-45] [REF-99] [REF-100] [REF-101]

Validation of household and humanitarian evidence should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learners affected by household and humanitarian evidence, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Within authorities responsible for household and humanitarian evidence, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-45] [REF-99] [REF-100] [REF-101]

Correction concerning household and humanitarian evidence should restore educational opportunity and not only amend the indicator. Within authorities responsible for household and humanitarian evidence, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For household and humanitarian evidence, later provision should be tested for attendance and substantive connection to the loss. In measuring household and humanitarian evidence, closure should retain any unrecovered time or progression consequence in the public account.[REF-45] [REF-99] [REF-100] [REF-101]

A further interval test for household and humanitarian evidence should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for household and humanitarian evidence should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within household and humanitarian evidence for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for household and humanitarian evidence should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for household and humanitarian evidence should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for household and humanitarian evidence reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for household and humanitarian evidence should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for household and humanitarian evidence should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of household and humanitarian evidence should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to triangulate population reach and barriers while keeping protection information out of public learner files. For household and humanitarian evidence, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring household and humanitarian evidence, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to household and humanitarian evidence, the report should identify what is established, what is inferred and which corrective decision follows.[REF-45] [REF-99] [REF-100] [REF-101]

Loss should be calculated against the instructional time genuinely scheduled for the affected learner group. This is the measured proposition for denominator and reference period. The reporting standard for denominator and reference period therefore requires that the record should identify the learner population, site or route, grade or subject where material, and reference period. For learners affected by denominator and reference period, a status assigned at national or district level should not be extended to a local service without evidence. Within authorities responsible for denominator and reference period, the source and date should remain visible beside the measure.[REF-21] [REF-48] [REF-52] [REF-105]

The principal distortion risk is that national annual hours are applied to local shifts or grades with different schedules. In denominator and reference period, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by denominator and reference period, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for denominator and reference period, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-21] [REF-48] [REF-52] [REF-105]

Validation of denominator and reference period should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learners affected by denominator and reference period, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Within authorities responsible for denominator and reference period, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-21] [REF-48] [REF-52] [REF-105]

The specification is to define cohort, site, grade, shift, period and operative timetable before counting loss. Within authorities responsible for denominator and reference period, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. For denominator and reference period, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. In measuring denominator and reference period, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-21] [REF-48] [REF-52] [REF-105]

The interpretive rule is to publish lost time and the denominator and avoid percentages whose expected time is uncertain. For denominator and reference period, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring denominator and reference period, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to denominator and reference period, the report should identify what is established, what is inferred and which corrective decision follows.[REF-21] [REF-48] [REF-52] [REF-105]

Correction concerning denominator and reference period should restore educational opportunity and not only amend the indicator. In measuring denominator and reference period, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to denominator and reference period, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for denominator and reference period therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-21] [REF-48] [REF-52] [REF-105]

A further interval test for denominator and reference period should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for denominator and reference period should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within denominator and reference period for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for denominator and reference period should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for denominator and reference period should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for denominator and reference period reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for denominator and reference period should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for denominator and reference period should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of denominator and reference period should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Learner-hours combine duration and affected population and reveal the scale of unequal exposure. This is the measured proposition for learner-hours and distribution. For learners affected by learner-hours and distribution, the record should identify the learner population, site or route, grade or subject where material, and reference period. Within authorities responsible for learner-hours and distribution, a status assigned at national or district level should not be extended to a local service without evidence. For learner-hours and distribution, the source and date should remain visible beside the measure.[REF-21] [REF-41] [REF-48] [REF-105]

Validation of learner-hours and distribution should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learners affected by learner-hours and distribution, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Within authorities responsible for learner-hours and distribution, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-21] [REF-41] [REF-48] [REF-105]

The principal distortion risk is that system totals are dominated by large institutions and can hide severe per-learner loss in smaller groups. In learner-hours and distribution, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learner-hours and distribution, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring learner-hours and distribution, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-21] [REF-41] [REF-48] [REF-105]

The specification is to calculate duration for each affected group before aggregation and retain per-learner distributions. For learner-hours and distribution, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. In measuring learner-hours and distribution, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Applied to learner-hours and distribution, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-21] [REF-41] [REF-48] [REF-105]

Correction concerning learner-hours and distribution should restore educational opportunity and not only amend the indicator. In measuring learner-hours and distribution, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to learner-hours and distribution, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for learner-hours and distribution therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-21] [REF-41] [REF-48] [REF-105]

A further interval test for learner-hours and distribution should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for learner-hours and distribution should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within learner-hours and distribution for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for learner-hours and distribution should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for learner-hours and distribution should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for learner-hours and distribution reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for learner-hours and distribution should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for learner-hours and distribution should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of learner-hours and distribution should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to report both total exposure and median or grouped individual loss without concealing extremes. Applied to learner-hours and distribution, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for learner-hours and distribution therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by learner-hours and distribution, the report should identify what is established, what is inferred and which corrective decision follows.[REF-21] [REF-41] [REF-48] [REF-105]

Shortened or interrupted sessions should be counted by the portion materially unavailable or undelivered. This is the measured proposition for partial-session loss. Within authorities responsible for partial-session loss, the record should identify the learner population, site or route, grade or subject where material, and reference period. For partial-session loss, a status assigned at national or district level should not be extended to a local service without evidence. In measuring partial-session loss, the source and date should remain visible beside the measure.[REF-21] [REF-52] [REF-99] [REF-105]

The principal distortion risk is that binary session codes overstate continuity or overstate loss depending on local convention. In partial-session loss, definitions can change whether an interval is classified as expected, lost, substituted or restored. For partial-session loss, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring partial-session loss, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-21] [REF-52] [REF-99] [REF-105]

The specification is to record actual or categorised duration and use transparent midpoint or bound rules where exact time is unavailable. For partial-session loss, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. In measuring partial-session loss, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Applied to partial-session loss, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-21] [REF-52] [REF-99] [REF-105]

Validation of partial-session loss should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. In measuring partial-session loss, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Applied to partial-session loss, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-21] [REF-52] [REF-99] [REF-105]

The interpretive rule is to conduct sensitivity analysis when partial periods form a material share of the conclusion. Applied to partial-session loss, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for partial-session loss therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by partial-session loss, the report should identify what is established, what is inferred and which corrective decision follows.[REF-21] [REF-52] [REF-99] [REF-105]

Correction concerning partial-session loss should restore educational opportunity and not only amend the indicator. The reporting standard for partial-session loss therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by partial-session loss, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for partial-session loss, closure should retain any unrecovered time or progression consequence in the public account.[REF-21] [REF-52] [REF-99] [REF-105]

A further interval test for partial-session loss should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for partial-session loss should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within partial-session loss for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for partial-session loss should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for partial-session loss should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for partial-session loss reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for partial-session loss should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for partial-session loss should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of partial-session loss should show who attended the restoration, what was taught and which progression consequence remains unresolved.

One period can be affected simultaneously by closure, teacher absence, unsafe access and learner displacement. This is the measured proposition for overlapping causes and double counting. For overlapping causes and double counting, the record should identify the learner population, site or route, grade or subject where material, and reference period. In measuring overlapping causes and double counting, a status assigned at national or district level should not be extended to a local service without evidence. Applied to overlapping causes and double counting, the source and date should remain visible beside the measure.[REF-41] [REF-48] [REF-52] [REF-105]

The specification is to assign one time interval to the primary service status and retain contributing causes as attributes. For overlapping causes and double counting, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. In measuring overlapping causes and double counting, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Applied to overlapping causes and double counting, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-41] [REF-48] [REF-52] [REF-105]

The principal distortion risk is that summing cause-specific totals can count the same lost hour several times. In overlapping causes and double counting, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to overlapping causes and double counting, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for overlapping causes and double counting therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-41] [REF-48] [REF-52] [REF-105]

Validation of overlapping causes and double counting should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Applied to overlapping causes and double counting, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. The reporting standard for overlapping causes and double counting therefore requires that contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-41] [REF-48] [REF-52] [REF-105]

Correction concerning overlapping causes and double counting should restore educational opportunity and not only amend the indicator. The reporting standard for overlapping causes and double counting therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by overlapping causes and double counting, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for overlapping causes and double counting, closure should retain any unrecovered time or progression consequence in the public account.[REF-41] [REF-48] [REF-52] [REF-105]

A further interval test for overlapping causes and double counting should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for overlapping causes and double counting should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within overlapping causes and double counting for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for overlapping causes and double counting should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for overlapping causes and double counting should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for overlapping causes and double counting reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for overlapping causes and double counting should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for overlapping causes and double counting should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of overlapping causes and double counting should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to publish total unique loss separately from cause incidence and explain the priority rule. For learners affected by overlapping causes and double counting, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for overlapping causes and double counting, comparisons require aligned schedules, units, grades, shifts and reference periods. For overlapping causes and double counting, the report should identify what is established, what is inferred and which corrective decision follows.[REF-41] [REF-48] [REF-52] [REF-105]

Additional or alternative teaching should be recorded separately before it is offset against loss. This is the measured proposition for recovered and substitute time. In measuring recovered and substitute time, the record should identify the learner population, site or route, grade or subject where material, and reference period. Applied to recovered and substitute time, a status assigned at national or district level should not be extended to a local service without evidence. The reporting standard for recovered and substitute time therefore requires that the source and date should remain visible beside the measure.[REF-15] [REF-46] [REF-52] [REF-105]

The principal distortion risk is that authorities may subtract any later open hour although attendance, content, duration or quality differs. In recovered and substitute time, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to recovered and substitute time, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for recovered and substitute time therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-46] [REF-52] [REF-105]

Validation of recovered and substitute time should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Applied to recovered and substitute time, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. The reporting standard for recovered and substitute time therefore requires that contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-46] [REF-52] [REF-105]

The specification is to state schedule, learner reach, content, teacher, duration and recognition for recovered provision. The reporting standard for recovered and substitute time therefore requires that the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. For learners affected by recovered and substitute time, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Within authorities responsible for recovered and substitute time, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-46] [REF-52] [REF-105]

The interpretive rule is to credit restored time only where it is additional, usable and connected to the missed learning purpose. For learners affected by recovered and substitute time, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for recovered and substitute time, comparisons require aligned schedules, units, grades, shifts and reference periods. For recovered and substitute time, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-46] [REF-52] [REF-105]

Correction concerning recovered and substitute time should restore educational opportunity and not only amend the indicator. Within authorities responsible for recovered and substitute time, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For recovered and substitute time, later provision should be tested for attendance and substantive connection to the loss. In measuring recovered and substitute time, closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-46] [REF-52] [REF-105]

A further interval test for recovered and substitute time should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for recovered and substitute time should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within recovered and substitute time for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for recovered and substitute time should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for recovered and substitute time should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for recovered and substitute time reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for recovered and substitute time should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for recovered and substitute time should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of recovered and substitute time should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Estimates should communicate incomplete coverage and changing information rather than imply exact knowledge. This is the measured proposition for uncertainty, estimation and revision. Applied to uncertainty, estimation and revision, the record should identify the learner population, site or route, grade or subject where material, and reference period. The reporting standard for uncertainty, estimation and revision therefore requires that a status assigned at national or district level should not be extended to a local service without evidence. For learners affected by uncertainty, estimation and revision, the source and date should remain visible beside the measure.[REF-21] [REF-48] [REF-100] [REF-105]

Validation of uncertainty, estimation and revision should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Applied to uncertainty, estimation and revision, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. The reporting standard for uncertainty, estimation and revision therefore requires that contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-21] [REF-48] [REF-100] [REF-105]

The principal distortion risk is that single values are produced from partial reports and later overwritten as more sites report. In uncertainty, estimation and revision, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by uncertainty, estimation and revision, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for uncertainty, estimation and revision, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-21] [REF-48] [REF-100] [REF-105]

The specification is to publish source coverage, bounds or scenarios, assumptions, revision date and effect on conclusions. For learners affected by uncertainty, estimation and revision, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for uncertainty, estimation and revision, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For uncertainty, estimation and revision, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-21] [REF-48] [REF-100] [REF-105]

Correction concerning uncertainty, estimation and revision should restore educational opportunity and not only amend the indicator. Within authorities responsible for uncertainty, estimation and revision, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For uncertainty, estimation and revision, later provision should be tested for attendance and substantive connection to the loss. In measuring uncertainty, estimation and revision, closure should retain any unrecovered time or progression consequence in the public account.[REF-21] [REF-48] [REF-100] [REF-105]

A further interval test for uncertainty, estimation and revision should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for uncertainty, estimation and revision should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within uncertainty, estimation and revision for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for uncertainty, estimation and revision should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for uncertainty, estimation and revision should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for uncertainty, estimation and revision reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for uncertainty, estimation and revision should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for uncertainty, estimation and revision should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of uncertainty, estimation and revision should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to preserve prior values and decisions and revise action when the credible range changes materially. For uncertainty, estimation and revision, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring uncertainty, estimation and revision, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to uncertainty, estimation and revision, the report should identify what is established, what is inferred and which corrective decision follows.[REF-21] [REF-48] [REF-100] [REF-105]

Girls and boys of different ages can face different safety, work, care and movement constraints after disruption. This is the measured proposition for sex and age distribution. The reporting standard for sex and age distribution therefore requires that the record should identify the learner population, site or route, grade or subject where material, and reference period. For learners affected by sex and age distribution, a status assigned at national or district level should not be extended to a local service without evidence. Within authorities responsible for sex and age distribution, the source and date should remain visible beside the measure.[REF-03] [REF-41] [REF-43] [REF-101]

The principal distortion risk is that a common closure duration is assumed to produce equal attendance loss and equal return. In sex and age distribution, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by sex and age distribution, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for sex and age distribution, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-03] [REF-41] [REF-43] [REF-101]

The specification is to disaggregate exposure, substitute use, return time and sustained attendance by sex and age where safe. For learners affected by sex and age distribution, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for sex and age distribution, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For sex and age distribution, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-03] [REF-41] [REF-43] [REF-101]

Validation of sex and age distribution should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Within authorities responsible for sex and age distribution, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. For sex and age distribution, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-03] [REF-41] [REF-43] [REF-101]

The interpretive rule is to investigate differences without attributing them automatically to household preference. For sex and age distribution, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring sex and age distribution, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to sex and age distribution, the report should identify what is established, what is inferred and which corrective decision follows.[REF-03] [REF-41] [REF-43] [REF-101]

Correction concerning sex and age distribution should restore educational opportunity and not only amend the indicator. In measuring sex and age distribution, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to sex and age distribution, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for sex and age distribution therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-03] [REF-41] [REF-43] [REF-101]

A further interval test for sex and age distribution should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for sex and age distribution should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within sex and age distribution for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for sex and age distribution should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for sex and age distribution should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for sex and age distribution reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for sex and age distribution should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for sex and age distribution should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of sex and age distribution should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Disabled learners can lose more time when transport, communication, support or temporary spaces are inaccessible. This is the measured proposition for disabled learners and accessibility. For learners affected by disabled learners and accessibility, the record should identify the learner population, site or route, grade or subject where material, and reference period. Within authorities responsible for disabled learners and accessibility, a status assigned at national or district level should not be extended to a local service without evidence. For disabled learners and accessibility, the source and date should remain visible beside the measure.[REF-10] [REF-12] [REF-101] [REF-106]

The specification is to record accessibility and support for each substitute route and maintain protected disability evidence. For learners affected by disabled learners and accessibility, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for disabled learners and accessibility, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For disabled learners and accessibility, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-10] [REF-12] [REF-101] [REF-106]

The principal distortion risk is that an alternative is counted for the whole cohort although reasonable accommodation is absent. In disabled learners and accessibility, definitions can change whether an interval is classified as expected, lost, substituted or restored. For disabled learners and accessibility, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring disabled learners and accessibility, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-10] [REF-12] [REF-101] [REF-106]

Validation of disabled learners and accessibility should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For disabled learners and accessibility, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring disabled learners and accessibility, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-10] [REF-12] [REF-101] [REF-106]

Correction concerning disabled learners and accessibility should restore educational opportunity and not only amend the indicator. In measuring disabled learners and accessibility, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to disabled learners and accessibility, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for disabled learners and accessibility therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-10] [REF-12] [REF-101] [REF-106]

A further interval test for disabled learners and accessibility should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for disabled learners and accessibility should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within disabled learners and accessibility for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for disabled learners and accessibility should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for disabled learners and accessibility should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for disabled learners and accessibility reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for disabled learners and accessibility should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for disabled learners and accessibility should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of disabled learners and accessibility should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to count time as available only where the learner can use the service and verify substantive participation. Applied to disabled learners and accessibility, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for disabled learners and accessibility therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by disabled learners and accessibility, the report should identify what is established, what is inferred and which corrective decision follows.[REF-10] [REF-12] [REF-101] [REF-106]

Distance, weather and sparse staffing make disruption and recovery different from central sites. This is the measured proposition for remote and mobile communities. Within authorities responsible for remote and mobile communities, the record should identify the learner population, site or route, grade or subject where material, and reference period. For remote and mobile communities, a status assigned at national or district level should not be extended to a local service without evidence. In measuring remote and mobile communities, the source and date should remain visible beside the measure.[REF-15] [REF-41] [REF-97] [REF-105]

The principal distortion risk is that district averages and straight-line distance obscure travel time, seasonal routes and missed teacher visits. In remote and mobile communities, definitions can change whether an interval is classified as expected, lost, substituted or restored. For remote and mobile communities, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring remote and mobile communities, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-41] [REF-97] [REF-105]

Validation of remote and mobile communities should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For remote and mobile communities, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring remote and mobile communities, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-41] [REF-97] [REF-105]

The specification is to measure actual service visits, route conditions, duration and learner reach by season. In measuring remote and mobile communities, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Applied to remote and mobile communities, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. The reporting standard for remote and mobile communities therefore requires that the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-41] [REF-97] [REF-105]

The interpretive rule is to compare delivered and attended time and maintain a contingency for recurring access failure. Applied to remote and mobile communities, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for remote and mobile communities therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by remote and mobile communities, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-41] [REF-97] [REF-105]

Correction concerning remote and mobile communities should restore educational opportunity and not only amend the indicator. The reporting standard for remote and mobile communities therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by remote and mobile communities, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for remote and mobile communities, closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-41] [REF-97] [REF-105]

A further interval test for remote and mobile communities should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for remote and mobile communities should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within remote and mobile communities for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for remote and mobile communities should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for remote and mobile communities should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for remote and mobile communities reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for remote and mobile communities should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for remote and mobile communities should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of remote and mobile communities should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Violence, displacement, damaged services and humanitarian access restrictions create severe and changing loss. This is the measured proposition for syrian children inside the country. For syrian children inside the country, the record should identify the learner population, site or route, grade or subject where material, and reference period. In measuring syrian children inside the country, a status assigned at national or district level should not be extended to a local service without evidence. Applied to syrian children inside the country, the source and date should remain visible beside the measure.[REF-100] [REF-101] [REF-103] [REF-104]

Validation of syrian children inside the country should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For syrian children inside the country, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring syrian children inside the country, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-100] [REF-101] [REF-103] [REF-104]

The principal distortion risk is that national schedules and incomplete reporting cannot represent the location-specific education status. In syrian children inside the country, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to syrian children inside the country, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for syrian children inside the country therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-100] [REF-101] [REF-103] [REF-104]

The specification is to use dated local service, population and response evidence with explicit coverage and uncertainty. Applied to syrian children inside the country, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for syrian children inside the country therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by syrian children inside the country, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-100] [REF-101] [REF-103] [REF-104]

Correction concerning syrian children inside the country should restore educational opportunity and not only amend the indicator. The reporting standard for syrian children inside the country therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by syrian children inside the country, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for syrian children inside the country, closure should retain any unrecovered time or progression consequence in the public account.[REF-100] [REF-101] [REF-103] [REF-104]

A further interval test for syrian children inside the country should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for syrian children inside the country should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within syrian children inside the country for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for syrian children inside the country should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for syrian children inside the country should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for syrian children inside the country reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for syrian children inside the country should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for syrian children inside the country should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of syrian children inside the country should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to report functions available, learner reach and time loss without inferring conditions in unreported areas. For learners affected by syrian children inside the country, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for syrian children inside the country, comparisons require aligned schedules, units, grades, shifts and reference periods. For syrian children inside the country, the report should identify what is established, what is inferred and which corrective decision follows.[REF-100] [REF-101] [REF-103] [REF-104]

Refugee learners face delay, language, documentation and capacity barriers while host institutions absorb additional demand. This is the measured proposition for refugee children and neighbouring host systems. In measuring refugee children and neighbouring host systems, the record should identify the learner population, site or route, grade or subject where material, and reference period. Applied to refugee children and neighbouring host systems, a status assigned at national or district level should not be extended to a local service without evidence. The reporting standard for refugee children and neighbouring host systems therefore requires that the source and date should remain visible beside the measure.[REF-99] [REF-101] [REF-102] [REF-103]

The principal distortion risk is that registration totals are treated as school participation and host double shifts as equivalent to the former schedule. In refugee children and neighbouring host systems, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to refugee children and neighbouring host systems, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for refugee children and neighbouring host systems therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-99] [REF-101] [REF-102] [REF-103]

The specification is to measure request, placement, attendance, shift duration, teacher availability and recognised progression. Applied to refugee children and neighbouring host systems, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for refugee children and neighbouring host systems therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by refugee children and neighbouring host systems, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-99] [REF-101] [REF-102] [REF-103]

Validation of refugee children and neighbouring host systems should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. The reporting standard for refugee children and neighbouring host systems therefore requires that reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. For learners affected by refugee children and neighbouring host systems, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-99] [REF-101] [REF-102] [REF-103]

The interpretive rule is to report refugee and host learner time together to expose crowding, shortened shifts and unequal alternatives. For learners affected by refugee children and neighbouring host systems, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for refugee children and neighbouring host systems, comparisons require aligned schedules, units, grades, shifts and reference periods. For refugee children and neighbouring host systems, the report should identify what is established, what is inferred and which corrective decision follows.[REF-99] [REF-101] [REF-102] [REF-103]

Correction concerning refugee children and neighbouring host systems should restore educational opportunity and not only amend the indicator. Within authorities responsible for refugee children and neighbouring host systems, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For refugee children and neighbouring host systems, later provision should be tested for attendance and substantive connection to the loss. In measuring refugee children and neighbouring host systems, closure should retain any unrecovered time or progression consequence in the public account.[REF-99] [REF-101] [REF-102] [REF-103]

A further interval test for refugee children and neighbouring host systems should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for refugee children and neighbouring host systems should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within refugee children and neighbouring host systems for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for refugee children and neighbouring host systems should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for refugee children and neighbouring host systems should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for refugee children and neighbouring host systems reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for refugee children and neighbouring host systems should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for refugee children and neighbouring host systems should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of refugee children and neighbouring host systems should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Instructional time should follow the learner across departure, transit, host placement, return and onward movement. This is the measured proposition for cross-border continuity and transfer. Applied to cross-border continuity and transfer, the record should identify the learner population, site or route, grade or subject where material, and reference period. The reporting standard for cross-border continuity and transfer therefore requires that a status assigned at national or district level should not be extended to a local service without evidence. For learners affected by cross-border continuity and transfer, the source and date should remain visible beside the measure.[REF-14] [REF-99] [REF-102] [REF-107]

The specification is to use portable dated records and bounded cooperation on last attendance, first attendance and learning placement. Applied to cross-border continuity and transfer, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for cross-border continuity and transfer therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by cross-border continuity and transfer, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-14] [REF-99] [REF-102] [REF-107]

The principal distortion risk is that each authority counts only the period within its system and the gap between systems disappears. In cross-border continuity and transfer, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by cross-border continuity and transfer, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for cross-border continuity and transfer, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-14] [REF-99] [REF-102] [REF-107]

Validation of cross-border continuity and transfer should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learners affected by cross-border continuity and transfer, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Within authorities responsible for cross-border continuity and transfer, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-14] [REF-99] [REF-102] [REF-107]

Correction concerning cross-border continuity and transfer should restore educational opportunity and not only amend the indicator. Within authorities responsible for cross-border continuity and transfer, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For cross-border continuity and transfer, later provision should be tested for attendance and substantive connection to the loss. In measuring cross-border continuity and transfer, closure should retain any unrecovered time or progression consequence in the public account.[REF-14] [REF-99] [REF-102] [REF-107]

A further interval test for cross-border continuity and transfer should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for cross-border continuity and transfer should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within cross-border continuity and transfer for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for cross-border continuity and transfer should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for cross-border continuity and transfer should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for cross-border continuity and transfer reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for cross-border continuity and transfer should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for cross-border continuity and transfer should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of cross-border continuity and transfer should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to calculate transition loss without delaying admission for complete verification and protect identity. For cross-border continuity and transfer, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring cross-border continuity and transfer, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to cross-border continuity and transfer, the report should identify what is established, what is inferred and which corrective decision follows.[REF-14] [REF-99] [REF-102] [REF-107]

Equal hours can differ greatly in task quality, language, feedback and learner participation. This is the measured proposition for quantity and quality of instruction. The reporting standard for quantity and quality of instruction therefore requires that the record should identify the learner population, site or route, grade or subject where material, and reference period. For learners affected by quantity and quality of instruction, a status assigned at national or district level should not be extended to a local service without evidence. Within authorities responsible for quantity and quality of instruction, the source and date should remain visible beside the measure.[REF-15] [REF-41] [REF-52] [REF-96]

The principal distortion risk is that time targets encourage restoration of nominal duration without examining educational use. In quantity and quality of instruction, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by quantity and quality of instruction, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for quantity and quality of instruction, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-41] [REF-52] [REF-96]

Validation of quantity and quality of instruction should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learners affected by quantity and quality of instruction, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Within authorities responsible for quantity and quality of instruction, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-41] [REF-52] [REF-96]

The specification is to report time together with sampled curriculum, teaching and learner-work evidence. Within authorities responsible for quantity and quality of instruction, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. For quantity and quality of instruction, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. In measuring quantity and quality of instruction, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-41] [REF-52] [REF-96]

The interpretive rule is to avoid converting hours directly into learning points and identify when low quality magnifies time loss. For quantity and quality of instruction, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring quantity and quality of instruction, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to quantity and quality of instruction, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-41] [REF-52] [REF-96]

Correction concerning quantity and quality of instruction should restore educational opportunity and not only amend the indicator. In measuring quantity and quality of instruction, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to quantity and quality of instruction, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for quantity and quality of instruction therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-41] [REF-52] [REF-96]

A further interval test for quantity and quality of instruction should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for quantity and quality of instruction should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within quantity and quality of instruction for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for quantity and quality of instruction should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for quantity and quality of instruction should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for quantity and quality of instruction reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for quantity and quality of instruction should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for quantity and quality of instruction should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of quantity and quality of instruction should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Loss at an introductory, practical or examination-preparation point may have greater consequence than equal time elsewhere. This is the measured proposition for curriculum sequence and critical timing. For learners affected by curriculum sequence and critical timing, the record should identify the learner population, site or route, grade or subject where material, and reference period. Within authorities responsible for curriculum sequence and critical timing, a status assigned at national or district level should not be extended to a local service without evidence. For curriculum sequence and critical timing, the source and date should remain visible beside the measure.[REF-15] [REF-52] [REF-96] [REF-105]

Validation of curriculum sequence and critical timing should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learners affected by curriculum sequence and critical timing, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Within authorities responsible for curriculum sequence and critical timing, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-52] [REF-96] [REF-105]

The principal distortion risk is that annual totals treat all periods and subjects as interchangeable. In curriculum sequence and critical timing, definitions can change whether an interval is classified as expected, lost, substituted or restored. For curriculum sequence and critical timing, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring curriculum sequence and critical timing, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-52] [REF-96] [REF-105]

The specification is to map missed time to curriculum progression, prerequisites, practical access and assessment dates. For curriculum sequence and critical timing, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. In measuring curriculum sequence and critical timing, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Applied to curriculum sequence and critical timing, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-52] [REF-96] [REF-105]

Correction concerning curriculum sequence and critical timing should restore educational opportunity and not only amend the indicator. In measuring curriculum sequence and critical timing, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to curriculum sequence and critical timing, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for curriculum sequence and critical timing therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-52] [REF-96] [REF-105]

A further interval test for curriculum sequence and critical timing should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for curriculum sequence and critical timing should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within curriculum sequence and critical timing for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for curriculum sequence and critical timing should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for curriculum sequence and critical timing should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for curriculum sequence and critical timing reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for curriculum sequence and critical timing should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for curriculum sequence and critical timing should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of curriculum sequence and critical timing should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to prioritise recovery according to learning dependency and learner need rather than chronology alone. Applied to curriculum sequence and critical timing, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for curriculum sequence and critical timing therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by curriculum sequence and critical timing, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-52] [REF-96] [REF-105]

Compression can restore progression if essential learning, support and realistic pace are preserved. This is the measured proposition for compressed curriculum and accelerated teaching. Within authorities responsible for compressed curriculum and accelerated teaching, the record should identify the learner population, site or route, grade or subject where material, and reference period. For compressed curriculum and accelerated teaching, a status assigned at national or district level should not be extended to a local service without evidence. In measuring compressed curriculum and accelerated teaching, the source and date should remain visible beside the measure.[REF-15] [REF-46] [REF-52] [REF-96]

The principal distortion risk is that authorities may cover the syllabus rapidly, increase workload and assess learners as if full teaching occurred. In compressed curriculum and accelerated teaching, definitions can change whether an interval is classified as expected, lost, substituted or restored. For compressed curriculum and accelerated teaching, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring compressed curriculum and accelerated teaching, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-46] [REF-52] [REF-96]

The specification is to define essential outcomes, protected breadth, pace, support, teacher preparation and assessment adjustment. For compressed curriculum and accelerated teaching, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. In measuring compressed curriculum and accelerated teaching, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Applied to compressed curriculum and accelerated teaching, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-46] [REF-52] [REF-96]

Validation of compressed curriculum and accelerated teaching should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. In measuring compressed curriculum and accelerated teaching, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Applied to compressed curriculum and accelerated teaching, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-46] [REF-52] [REF-96]

The interpretive rule is to test learner work, understanding, attendance and unequal burden before claiming recovery. Applied to compressed curriculum and accelerated teaching, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for compressed curriculum and accelerated teaching therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by compressed curriculum and accelerated teaching, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-46] [REF-52] [REF-96]

Correction concerning compressed curriculum and accelerated teaching should restore educational opportunity and not only amend the indicator. The reporting standard for compressed curriculum and accelerated teaching therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by compressed curriculum and accelerated teaching, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for compressed curriculum and accelerated teaching, closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-46] [REF-52] [REF-96]

A further interval test for compressed curriculum and accelerated teaching should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for compressed curriculum and accelerated teaching should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within compressed curriculum and accelerated teaching for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for compressed curriculum and accelerated teaching should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for compressed curriculum and accelerated teaching should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for compressed curriculum and accelerated teaching reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for compressed curriculum and accelerated teaching should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for compressed curriculum and accelerated teaching should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of compressed curriculum and accelerated teaching should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Targeted additional teaching can address diagnosed gaps and unequal prior exposure. This is the measured proposition for additional teaching and tutoring. For additional teaching and tutoring, the record should identify the learner population, site or route, grade or subject where material, and reference period. In measuring additional teaching and tutoring, a status assigned at national or district level should not be extended to a local service without evidence. Applied to additional teaching and tutoring, the source and date should remain visible beside the measure.[REF-10] [REF-15] [REF-46] [REF-52]

The specification is to identify learners and learning needs, provide accessible additional instruction and record actual attendance. For additional teaching and tutoring, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. In measuring additional teaching and tutoring, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Applied to additional teaching and tutoring, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-10] [REF-15] [REF-46] [REF-52]

The principal distortion risk is that generic extra hours may reach confident learners, repeat ordinary teaching or impose new transport and care barriers. In additional teaching and tutoring, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to additional teaching and tutoring, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for additional teaching and tutoring therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-10] [REF-15] [REF-46] [REF-52]

Validation of additional teaching and tutoring should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Applied to additional teaching and tutoring, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. The reporting standard for additional teaching and tutoring therefore requires that contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-10] [REF-15] [REF-46] [REF-52]

Correction concerning additional teaching and tutoring should restore educational opportunity and not only amend the indicator. The reporting standard for additional teaching and tutoring therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by additional teaching and tutoring, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for additional teaching and tutoring, closure should retain any unrecovered time or progression consequence in the public account.[REF-10] [REF-15] [REF-46] [REF-52]

A further interval test for additional teaching and tutoring should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for additional teaching and tutoring should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within additional teaching and tutoring for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for additional teaching and tutoring should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for additional teaching and tutoring should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for additional teaching and tutoring reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for additional teaching and tutoring should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for additional teaching and tutoring should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of additional teaching and tutoring should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to compare later work and progression and examine who could not use the offer. For learners affected by additional teaching and tutoring, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for additional teaching and tutoring, comparisons require aligned schedules, units, grades, shifts and reference periods. For additional teaching and tutoring, the report should identify what is established, what is inferred and which corrective decision follows.[REF-10] [REF-15] [REF-46] [REF-52]

Assessment decisions should reflect the learning opportunity actually provided. This is the measured proposition for assessment timing and fairness. In measuring assessment timing and fairness, the record should identify the learner population, site or route, grade or subject where material, and reference period. Applied to assessment timing and fairness, a status assigned at national or district level should not be extended to a local service without evidence. The reporting standard for assessment timing and fairness therefore requires that the source and date should remain visible beside the measure.[REF-03] [REF-41] [REF-46] [REF-52]

The principal distortion risk is that fixed examinations can convert system disruption into learner failure and grade repetition. In assessment timing and fairness, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to assessment timing and fairness, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for assessment timing and fairness therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-03] [REF-41] [REF-46] [REF-52]

Validation of assessment timing and fairness should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Applied to assessment timing and fairness, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. The reporting standard for assessment timing and fairness therefore requires that contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-03] [REF-41] [REF-46] [REF-52]

The specification is to adjust timing, content coverage, evidence routes and appeal while preserving the substantive standard. The reporting standard for assessment timing and fairness therefore requires that the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. For learners affected by assessment timing and fairness, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. Within authorities responsible for assessment timing and fairness, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-03] [REF-41] [REF-46] [REF-52]

The interpretive rule is to document affected cohorts and compare decisions with delivered curriculum and later progression. For learners affected by assessment timing and fairness, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for assessment timing and fairness, comparisons require aligned schedules, units, grades, shifts and reference periods. For assessment timing and fairness, the report should identify what is established, what is inferred and which corrective decision follows.[REF-03] [REF-41] [REF-46] [REF-52]

Correction concerning assessment timing and fairness should restore educational opportunity and not only amend the indicator. Within authorities responsible for assessment timing and fairness, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For assessment timing and fairness, later provision should be tested for attendance and substantive connection to the loss. In measuring assessment timing and fairness, closure should retain any unrecovered time or progression consequence in the public account.[REF-03] [REF-41] [REF-46] [REF-52]

A further interval test for assessment timing and fairness should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for assessment timing and fairness should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within assessment timing and fairness for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for assessment timing and fairness should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for assessment timing and fairness should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for assessment timing and fairness reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for assessment timing and fairness should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for assessment timing and fairness should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of assessment timing and fairness should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Different levels and distributions of loss require monitoring, local correction or wider system action. This is the measured proposition for thresholds for escalation and recovery. Applied to thresholds for escalation and recovery, the record should identify the learner population, site or route, grade or subject where material, and reference period. The reporting standard for thresholds for escalation and recovery therefore requires that a status assigned at national or district level should not be extended to a local service without evidence. For learners affected by thresholds for escalation and recovery, the source and date should remain visible beside the measure.[REF-05] [REF-41] [REF-52] [REF-105]

Validation of thresholds for escalation and recovery should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Applied to thresholds for escalation and recovery, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. The reporting standard for thresholds for escalation and recovery therefore requires that contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-05] [REF-41] [REF-52] [REF-105]

The principal distortion risk is that one universal hour threshold ignores learner age, critical content, repeated disruption and unequal substitutes. In thresholds for escalation and recovery, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by thresholds for escalation and recovery, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for thresholds for escalation and recovery, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-05] [REF-41] [REF-52] [REF-105]

The specification is to combine duration, recurrence, curriculum dependency, population, equity and evidence strength in the decision. For learners affected by thresholds for escalation and recovery, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for thresholds for escalation and recovery, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For thresholds for escalation and recovery, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-05] [REF-41] [REF-52] [REF-105]

Correction concerning thresholds for escalation and recovery should restore educational opportunity and not only amend the indicator. Within authorities responsible for thresholds for escalation and recovery, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For thresholds for escalation and recovery, later provision should be tested for attendance and substantive connection to the loss. In measuring thresholds for escalation and recovery, closure should retain any unrecovered time or progression consequence in the public account.[REF-05] [REF-41] [REF-52] [REF-105]

A further interval test for thresholds for escalation and recovery should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for thresholds for escalation and recovery should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within thresholds for escalation and recovery for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for thresholds for escalation and recovery should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for thresholds for escalation and recovery should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for thresholds for escalation and recovery reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for thresholds for escalation and recovery should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for thresholds for escalation and recovery should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of thresholds for escalation and recovery should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to record why action started or expanded and review whether restored opportunity reaches the affected learners. For thresholds for escalation and recovery, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring thresholds for escalation and recovery, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to thresholds for escalation and recovery, the report should identify what is established, what is inferred and which corrective decision follows.[REF-05] [REF-41] [REF-52] [REF-105]

One accountable body should maintain definitions, source reconciliation, revisions and corrective referral. This is the measured proposition for responsibility for time records. The reporting standard for responsibility for time records therefore requires that the record should identify the learner population, site or route, grade or subject where material, and reference period. For learners affected by responsibility for time records, a status assigned at national or district level should not be extended to a local service without evidence. Within authorities responsible for responsibility for time records, the source and date should remain visible beside the measure.[REF-05] [REF-21] [REF-52] [REF-105]

The principal distortion risk is that calendar, staff, learner and humanitarian records remain in separate bodies with no common conclusion. In responsibility for time records, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by responsibility for time records, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for responsibility for time records, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-05] [REF-21] [REF-52] [REF-105]

The specification is to assign data stewardship, service ownership, protection limits and escalation at national and regional levels. For learners affected by responsibility for time records, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for responsibility for time records, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For responsibility for time records, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-05] [REF-21] [REF-52] [REF-105]

Validation of responsibility for time records should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. Within authorities responsible for responsibility for time records, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. For responsibility for time records, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-05] [REF-21] [REF-52] [REF-105]

The interpretive rule is to reconstruct selected findings from source interval to action and resolve institutional contradictions. For responsibility for time records, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring responsibility for time records, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to responsibility for time records, the report should identify what is established, what is inferred and which corrective decision follows.[REF-05] [REF-21] [REF-52] [REF-105]

Correction concerning responsibility for time records should restore educational opportunity and not only amend the indicator. In measuring responsibility for time records, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to responsibility for time records, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for responsibility for time records therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-05] [REF-21] [REF-52] [REF-105]

A further interval test for responsibility for time records should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for responsibility for time records should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within responsibility for time records for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for responsibility for time records should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for responsibility for time records should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for responsibility for time records reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for responsibility for time records should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for responsibility for time records should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of responsibility for time records should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Material interruption should be recorded close to occurrence under a proportionate common classification. This is the measured proposition for incident and interruption register. For learners affected by incident and interruption register, the record should identify the learner population, site or route, grade or subject where material, and reference period. Within authorities responsible for incident and interruption register, a status assigned at national or district level should not be extended to a local service without evidence. For incident and interruption register, the source and date should remain visible beside the measure.[REF-29] [REF-47] [REF-52] [REF-105]

The specification is to record site, group, interval, status, cause, evidence, substitute, correction and verification. For learners affected by incident and interruption register, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Within authorities responsible for incident and interruption register, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For incident and interruption register, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-29] [REF-47] [REF-52] [REF-105]

The principal distortion risk is that minor recurring loss is forgotten while major events are described narratively without usable duration. In incident and interruption register, definitions can change whether an interval is classified as expected, lost, substituted or restored. For incident and interruption register, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring incident and interruption register, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-29] [REF-47] [REF-52] [REF-105]

Validation of incident and interruption register should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For incident and interruption register, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring incident and interruption register, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-29] [REF-47] [REF-52] [REF-105]

Correction concerning incident and interruption register should restore educational opportunity and not only amend the indicator. In measuring incident and interruption register, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. Applied to incident and interruption register, later provision should be tested for attendance and substantive connection to the loss. The reporting standard for incident and interruption register therefore requires that closure should retain any unrecovered time or progression consequence in the public account.[REF-29] [REF-47] [REF-52] [REF-105]

A further interval test for incident and interruption register should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for incident and interruption register should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within incident and interruption register for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for incident and interruption register should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for incident and interruption register should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for incident and interruption register reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for incident and interruption register should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for incident and interruption register should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of incident and interruption register should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to review patterns and repeated dependencies without burdening teachers with excessive reporting. Applied to incident and interruption register, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for incident and interruption register therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by incident and interruption register, the report should identify what is established, what is inferred and which corrective decision follows.[REF-29] [REF-47] [REF-52] [REF-105]

Recovery should translate measured loss into teaching, support, assessment and transfer action. This is the measured proposition for restoration plans by learner group. Within authorities responsible for restoration plans by learner group, the record should identify the learner population, site or route, grade or subject where material, and reference period. For restoration plans by learner group, a status assigned at national or district level should not be extended to a local service without evidence. In measuring restoration plans by learner group, the source and date should remain visible beside the measure.[REF-15] [REF-46] [REF-101] [REF-105]

The principal distortion risk is that system-wide reopening plans do not identify who lost most time or which learning prerequisite was missed. In restoration plans by learner group, definitions can change whether an interval is classified as expected, lost, substituted or restored. For restoration plans by learner group, the authority should preserve raw dates and durations before conversion and should state missingness and revision. In measuring restoration plans by learner group, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-15] [REF-46] [REF-101] [REF-105]

Validation of restoration plans by learner group should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For restoration plans by learner group, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring restoration plans by learner group, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-15] [REF-46] [REF-101] [REF-105]

The specification is to set group baselines, curriculum priorities, owners, resources, dates and accessible alternatives. In measuring restoration plans by learner group, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. Applied to restoration plans by learner group, personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. The reporting standard for restoration plans by learner group therefore requires that the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-15] [REF-46] [REF-101] [REF-105]

The interpretive rule is to close each action only after delivery and learner evidence and retain unresolved loss publicly. Applied to restoration plans by learner group, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. The reporting standard for restoration plans by learner group therefore requires that comparisons require aligned schedules, units, grades, shifts and reference periods. For learners affected by restoration plans by learner group, the report should identify what is established, what is inferred and which corrective decision follows.[REF-15] [REF-46] [REF-101] [REF-105]

Correction concerning restoration plans by learner group should restore educational opportunity and not only amend the indicator. The reporting standard for restoration plans by learner group therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by restoration plans by learner group, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for restoration plans by learner group, closure should retain any unrecovered time or progression consequence in the public account.[REF-15] [REF-46] [REF-101] [REF-105]

A further interval test for restoration plans by learner group should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for restoration plans by learner group should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within restoration plans by learner group for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for restoration plans by learner group should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for restoration plans by learner group should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for restoration plans by learner group reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for restoration plans by learner group should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for restoration plans by learner group should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of restoration plans by learner group should show who attended the restoration, what was taught and which progression consequence remains unresolved.

Staffing plans should anticipate vacancy, displacement and subject shortage as direct time risks. This is the measured proposition for teacher supply and substitute capacity. For teacher supply and substitute capacity, the record should identify the learner population, site or route, grade or subject where material, and reference period. In measuring teacher supply and substitute capacity, a status assigned at national or district level should not be extended to a local service without evidence. Applied to teacher supply and substitute capacity, the source and date should remain visible beside the measure.[REF-97] [REF-98] [REF-101] [REF-102]

Validation of teacher supply and substitute capacity should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For teacher supply and substitute capacity, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. In measuring teacher supply and substitute capacity, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-97] [REF-98] [REF-101] [REF-102]

The principal distortion risk is that teacher recruitment totals do not show assignment, competence, presence or continuity at affected sites. In teacher supply and substitute capacity, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to teacher supply and substitute capacity, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for teacher supply and substitute capacity therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-97] [REF-98] [REF-101] [REF-102]

The specification is to maintain regional need, assignment, substitute, support and safe-working evidence by subject and location. Applied to teacher supply and substitute capacity, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for teacher supply and substitute capacity therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by teacher supply and substitute capacity, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-97] [REF-98] [REF-101] [REF-102]

Correction concerning teacher supply and substitute capacity should restore educational opportunity and not only amend the indicator. The reporting standard for teacher supply and substitute capacity therefore requires that the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For learners affected by teacher supply and substitute capacity, later provision should be tested for attendance and substantive connection to the loss. Within authorities responsible for teacher supply and substitute capacity, closure should retain any unrecovered time or progression consequence in the public account.[REF-97] [REF-98] [REF-101] [REF-102]

A further interval test for teacher supply and substitute capacity should reconstruct one affected learner group day by day from the operative timetable, service status, teaching record and attendance evidence. The reconstruction for teacher supply and substitute capacity should show where uncertainty enters and whether the cause classification changes the corrective owner. Any offset within teacher supply and substitute capacity for later teaching should remain separate until learner reach, curriculum connection and actual duration are verified.

A source-reconciliation test for teacher supply and substitute capacity should compare the earliest report, the current administrative value and one independent learner-facing source. The reconciliation for teacher supply and substitute capacity should explain differences in dates, coverage, units and status definitions and should preserve the earlier value. Where no source can establish the interval for teacher supply and substitute capacity reliably, the report should use bounds and identify the decision that remains possible under both bounds.

A distribution test for teacher supply and substitute capacity should identify the learner group with the greatest per-person loss and the group least able to use substitute provision. The restoration decision for teacher supply and substitute capacity should allocate additional teaching and support according to missed learning and access, not only total enrolment. Verification of teacher supply and substitute capacity should show who attended the restoration, what was taught and which progression consequence remains unresolved.

The interpretive rule is to link staffing action to delivered teaching time and examine turnover and unequal distribution. For learners affected by teacher supply and substitute capacity, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for teacher supply and substitute capacity, comparisons require aligned schedules, units, grades, shifts and reference periods. For teacher supply and substitute capacity, the report should identify what is established, what is inferred and which corrective decision follows.[REF-97] [REF-98] [REF-101] [REF-102]

Reports should publish scheduled, lost, substitute and restored time with population, period and coverage. This is the measured proposition for public reporting and claims. In measuring public reporting and claims, the record should identify the learner population, site or route, grade or subject where material, and reference period. Applied to public reporting and claims, a status assigned at national or district level should not be extended to a local service without evidence. The reporting standard for public reporting and claims therefore requires that the source and date should remain visible beside the measure.[REF-05] [REF-21] [REF-48] [REF-105]

The principal distortion risk is that one net figure conceals whether recovery reached the same learners and content. In public reporting and claims, definitions can change whether an interval is classified as expected, lost, substituted or restored. Applied to public reporting and claims, the authority should preserve raw dates and durations before conversion and should state missingness and revision. The reporting standard for public reporting and claims therefore requires that apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-05] [REF-21] [REF-48] [REF-105]

The specification is to state units, denominator, status hierarchy, overlap rule, uncertainty, revision and remaining limitation. Applied to public reporting and claims, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for public reporting and claims therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by public reporting and claims, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-05] [REF-21] [REF-48] [REF-105]

Validation of public reporting and claims should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. The reporting standard for public reporting and claims therefore requires that reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. For learners affected by public reporting and claims, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-05] [REF-21] [REF-48] [REF-105]

The interpretive rule is to test public claims against source records and correct material overstatement without erasing history. For learners affected by public reporting and claims, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. Within authorities responsible for public reporting and claims, comparisons require aligned schedules, units, grades, shifts and reference periods. For public reporting and claims, the report should identify what is established, what is inferred and which corrective decision follows.[REF-05] [REF-21] [REF-48] [REF-105]

Correction concerning public reporting and claims should restore educational opportunity and not only amend the indicator. Within authorities responsible for public reporting and claims, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For public reporting and claims, later provision should be tested for attendance and substantive connection to the loss. In measuring public reporting and claims, closure should retain any unrecovered time or progression consequence in the public account.[REF-05] [REF-21] [REF-48] [REF-105]

Authorities need a small set capable of timely action rather than an extensive return that arrives after decisions. This is the measured proposition for a compact time-loss indicator set. Applied to a compact time-loss indicator set, the record should identify the learner population, site or route, grade or subject where material, and reference period. The reporting standard for a compact time-loss indicator set therefore requires that a status assigned at national or district level should not be extended to a local service without evidence. For learners affected by a compact time-loss indicator set, the source and date should remain visible beside the measure.[REF-21] [REF-48] [REF-52] [REF-105]

The specification is to maintain scheduled time, unique lost time, affected learners, substitute time, attendance and verified restoration. Applied to a compact time-loss indicator set, the indicator should state numerator, denominator, unit, status hierarchy, overlap treatment, disaggregation and any estimation rule. The reporting standard for a compact time-loss indicator set therefore requires that personal and protection information should be limited to what is necessary and public cells should not create disclosure risk. For learners affected by a compact time-loss indicator set, the method should remain usable during disruption and should not impose a reporting burden that removes teaching time.[REF-21] [REF-48] [REF-52] [REF-105]

The principal distortion risk is that indicator catalogues can multiply counts while leaving site status and learner consequence unresolved. In a compact time-loss indicator set, definitions can change whether an interval is classified as expected, lost, substituted or restored. For learners affected by a compact time-loss indicator set, the authority should preserve raw dates and durations before conversion and should state missingness and revision. Within authorities responsible for a compact time-loss indicator set, apparent precision should not exceed the spatial, population and temporal coverage of the evidence.[REF-21] [REF-48] [REF-52] [REF-105]

Validation of a compact time-loss indicator set should compare at least two suitable sources and include direct site or learner evidence for a bounded sample. For learners affected by a compact time-loss indicator set, reviewers should test whether the service was usable, whether teaching was delivered for the reported duration and whether the same learners received an alternative. Within authorities responsible for a compact time-loss indicator set, contradictions should be investigated and unresolved differences should widen uncertainty rather than disappear through averaging.[REF-21] [REF-48] [REF-52] [REF-105]

Correction concerning a compact time-loss indicator set should restore educational opportunity and not only amend the indicator. Within authorities responsible for a compact time-loss indicator set, the decision should name the affected learners, missed learning, responsible body, resource, timetable, accessible alternative and completion evidence. For a compact time-loss indicator set, later provision should be tested for attendance and substantive connection to the loss. In measuring a compact time-loss indicator set, closure should retain any unrecovered time or progression consequence in the public account.[REF-21] [REF-48] [REF-52] [REF-105]

The interpretive rule is to review adverse sites and distributions regularly and revise measures when they do not support corrective decisions. For a compact time-loss indicator set, a time result should be examined with curriculum, teacher, attendance and learner evidence before a learning consequence is stated. In measuring a compact time-loss indicator set, comparisons require aligned schedules, units, grades, shifts and reference periods. Applied to a compact time-loss indicator set, the report should identify what is established, what is inferred and which corrective decision follows.[REF-21] [REF-48] [REF-52] [REF-105]