Explore the evidence
2 of 88 decisions · clear everything
Survives the gold standardIndependent, durable, rigorousThe debunked shelfCheap winsFor parents at homeFamous numbers, deflatedWhere we admit ignoranceThe terrain
domain
- math6
- reading6
- writing6
- early childhood5
- arts3
- debunked3
- health3
- practice3
- assessment2
- character2
- grouping2
- instruction style2
- motor skills2
- music2
- science2
- transfer2
- class size1
- computer science1
- curriculum1
- deliberate practice1
- edtech1
- feedback1
- foreign language1
- mastery1
- physical development1
- practical1
- school structure1
- sport1
- talent1
- teachers1
- time1
- tutoring1
layer
Your situation · from the applicability layer — absence means “not yet assessed,” never “doesn’t apply”
who's delivering
group / setting
cost
outcome class
The headline effects are a measurement artefact: drama gives d≈0.89 on researcher-made tests and d≈0.29 on standardized ones, and the two randomised trials with standardized outcomes are null.
mixedconf: mediumgc: mediumDoes classroom drama build verbal and literacy skills? · arts · ages 5–16
Nobody has tested it. There is no controlled trial in which art instruction is the input and independently measured art skill is the outcome — the field's core claim is the one it never studied.
insufficientconf: lowgc: medium6/618/48connected:Does arts education raise academicBrain Gym, Whole Brain Teaching, aAre museum and theatre trips worth
Does teaching visual art produce artistic skill? · arts · ages 4–18
Not yet assessed for this question · 7
- Algebra timing — acceleration mandates, delay mandates, and readiness-based placement
- Does arts education raise academic achievement?
- Explicit vs reform/constructivist math instruction
- Manipulatives and concrete-representational-abstract (CRA) sequences
- Math curriculum choice — how much does the textbook matter?
- Math-fact fluency and timed practice (and the anti-timed-test claims)
- Word problems, schema instruction, and the conceptual-vs-procedural question
The URL is the state — any view you build here is a permalink you can hand to someone mid-argument.