Explore the evidence
1 of 88 decisions · clear everything
Survives the gold standardIndependent, durable, rigorousThe debunked shelfCheap winsFor parents at homeFamous numbers, deflatedWhere we admit ignoranceThe terrain
survival prior
Your situation · from the applicability layer — absence means “not yet assessed,” never “doesn’t apply”
who's delivering
group / setting
Perry and Abecedarian: n=123 and n=111, IQ gains gone by adolescence, attainment effects real but multiplicity-fragile. Too thin to carry the policy built on them.
mixedconf: mediumgc: lowPerry Preschool and Abecedarian — what the famous studies actually establish · early-childhood · ages 4–5 · structure
Not yet assessed for this question · 5
- Does working-memory or brain training transfer to intelligence and achievement?
- Physical activity as an input — dose, fitness, and school outcomes
- Homeschool socialisation — the most-asked question, and the least answerable one
- Brain Gym, Whole Brain Teaching, and the smaller classroom brain fads
- School starting age, relative age, and academic redshirting
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