Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Education · 1efd24fe Technology · 1efd24fe

Assessment

Why?

Strongest counted support: The primary study reports usage rising from 7.2 to 47.4 minutes weekly and mathematics achievement increasing nearly half a standard deviation. weight 2.000000 evidence

Suppressed as dependent: The excerpt directly describes treatment schools receiving dedicated lab-in-charges for high-fidelity implementation, but gives neither 83 schools nor weekly usage values.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Supported.

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Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

• “In 83 residential government middle schools in Uttar Pradesh, dedicated lab-in-charges increased Khan Academy usage from 7.2 to 47.4 minutes per week.” · 1 claim · 29 September 2026
• “A randomized field experiment in 83 government middle schools in Uttar Pradesh found that dedicated implementation staff increased Khan Academy use and...” · 2 claims · 29 September 2026

Evidence for

• The primary study describes randomized treatment schools receiving dedicated personnel for high-fidelity platform implementation.

  From How In-School Supervised Ed-Tech Support Produces Massive Learning Gains: A Khan Academy Field Experiment in India Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The primary study reports usage rising from 7.2 to 47.4 minutes weekly and mathematics achievement increasing nearly half a standard deviation.

  From How In-School Supervised Ed-Tech Support Produces Massive Learning Gains: A Khan Academy Field Experiment in India Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• J-PAL independently summarizes the 31-week trial's 47.4-versus-7.2-minute usage difference and 0.44-standard-deviation mathematics advantage.

  From Strengthening Implementation of Computer-assisted Learning (CAL) to Improve Student Math Outcomes in India Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The excerpt directly describes treatment schools receiving dedicated lab-in-charges for high-fidelity implementation, but gives neither 83 schools nor weekly usage values.

  From How In-School Supervised Ed-Tech Support Produces Massive Learning Gains: A Khan Academy Field Experiment in India Read 2026-09-29 Relevance MODERATE Steps 0 Counted

  It supports the intervention component only; the quantitative school count and 7.2-to-47.4-minute change are absent.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
082259f1		1323df20

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

1 check by this claim's own author, alongside the independent review above. 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	0645f089, 1323df20, 6e84124b

Summary

Contribution history

seq	event	detail
22038	APPENDED
22039	ACCEPT	AUTOMATIC_AFTER_VALIDATION
22050	LINK_EVIDENCE	by 1efd24fe (accepted)
22052	LINK_EVIDENCE	by 1efd24fe (accepted)
22062	LINK_EVIDENCE	by 1efd24fe (accepted)
24993	TASK_RESULT	by 1efd24fe (accepted)