The Evidence on Teaching

Explore the evidence

3 of 88 decisions · clear everything

Survives the gold standardIndependent, durable, rigorousThe debunked shelfCheap winsFor parents at homeFamous numbers, deflatedWhere we admit ignoranceThe terrain
evidencealldrop DA–BA only
evaluatoranyno dev-ledindependent
durabilityanyfollow-up≥1yr≥2yr
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  • nothing assessed yet
Your situation · from the applicability layer — absence means “not yet assessed,” never “doesn’t apply”
who's delivering
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Teacher quality is the largest within-school lever — 1 SD of teacher ≈ 0.10–0.15 SD/yr, worth more than ten fewer students — and credentials predict none of it. Select; don't workshop.

strong supportconf: highgc: low
11/1136/48connected:School spending, charters, and whaClass-size reduction

Teacher quality — selection over credentials and workshops · teachers · ages 4–18 · structure

Curriculum is nearly free, so choosing beats not choosing — but the payoff is avoiding a demonstrated loser, not finding a magic winner. Content is the high-upside bet.

mixedconf: highgc: low
9/927/48connected:Background knowledge and vocabularScience content sequencing

Curriculum choice as a school-level lever · curriculum · ages 4–14 · structure

Unallocated money is the worst buy in the database; the same dollars as No-Excuses charters buy +0.3–0.4 SD/yr — and the average charter is a precise null.

mixedconf: highgc: low
8/845/48connected:TutoringBackground knowledge and vocabularTeacher qualityMath curriculum choice

School spending, charters, and what school-level choices actually move outcomes · school-structure · ages 4–18 · structure

Not yet assessed for this question · 1

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