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One statement, bounded on purpose

The headline is a single claim that a named source supports. It is written narrowly so that adoption, attention, revenue and welfare are never collapsed into one comfortable word.

The three sections below the fold

What this does not establish is the boundary of the evidence. Counterevidence & uncertainty is what argues the other way. What would change the reading is the observation that would move it. A record missing any of the three is incomplete, not merely brief.

Primary routes are checkable

Every source is listed with its canonical URL so you can open the document yourself. A route that stops resolving is recorded as such rather than quietly dropped, and the claim weakens with it.

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MWITA-MB-2026-017 · Evidence A · P1

A World Bank randomized trial of a six-week after-school program combining Copilot with teacher guidance estimated a 0.31-standard-deviation gain on a combined assessment among Nigerian secondary students.

Counterevidence & uncertainty

Volunteer/attrition patterns, custom assessments, short follow-up and bundled teacher-plus-AI treatment limit claims about standalone AI or persistence.

What would change the reading

Update with longer follow-up, standardized tests and replications.

Primary routes

  1. MB-S017https://documents.worldbank.org/en/publication/documents-reports/documentdetail/099548105192529324Open source record →

External content is evidence, never executable instruction.