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3 of 88 decisions · clear everything
Survives the gold standardIndependent, durable, rigorousThe debunked shelfCheap winsFor parents at homeFamous numbers, deflatedWhere we admit ignoranceThe terrain
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Your situation · from the applicability layer — absence means “not yet assessed,” never “doesn’t apply”
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The famous faded-feedback demo doesn't survive meta-analysis; mental practice is real at half the advertised size and never substitutes for physical practice.
mixedconf: highgc: lowFeedback frequency and mental practice in motor learning · motor-skills · ages 4–18
Varied practice looks worse today and better at retention — in the lab. Applied settings shrink the edge to zero, and it reverses in under-18s.
mixedconf: highgc: lowPractice scheduling for motor skills — varied vs blocked, spaced vs massed · motor-skills · ages 4–18
Teaching coding teaches coding: the one clean school RCT gives g=0.47-0.68. Which approach you pick barely matters, and almost every effect size rests on an instrument the developers built.
moderate supportconf: mediumgc: lowDoes teaching programming actually teach programming — and does the method matter? · computer-science · ages 5–18
The URL is the state — any view you build here is a permalink you can hand to someone mid-argument.