Curiosity Corner shows no discernible effects on preschool math outcomes in the PCER randomized trial¶
Claim · All claims
Evidence · 1 study · causalr2·q3
Currency · newest study 2009 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q3 i? None of the differences on WJ III Applied Problems, CMA-A Composite, or Shape Composition were statistically significant or substantively important. → Curiosity Corner 2009
Evidence¶
Curiosity Corner 2009¶
Curiosity Corner. (2009). WWC Intervention Report, What Works Clearinghouse, U.S. Department of Education. https://www.successforall.org/early/early_curiosity.htm
q3 · i? · causal · r2
Randomized controlled trial (PCER Consortium, 2008); math assessed with WJ III Applied Problems, the CMA-A Composite Score, and the Shape Composition task across 18 preschools. No difference was statistically significant or substantively important.
"The study shows, and the WWC confirms, none of the differences between children in the treatment and control groups are statistically significant or substantively important."
Discussion¶
Related Claims¶
- Bright Beginnings shows no discernible effects on preschool math (domain average effect size 0.07, not statistically significant) — related
- Curiosity Corner shows no discernible effects on preschool print knowledge in the PCER randomized trial — related
- Curiosity Corner shows no discernible effects on preschool oral language outcomes across two studies meeting WWC standards — related
- Kindergarten follow-up shows statistically significant positive effects of Curiosity Corner on two print knowledge measures, not included in the effectiveness rating — related
- Curiosity Corner shows no discernible effects on phonological processing in the PCER randomized trial — related
- Ready, Set, Leap!® shows no discernible effects on oral language, print knowledge, phonological processing, early reading/writing, or math in preschoolers — related
- Doors to Discovery™ shows no discernible effects on preschool math (domain-average effect size 0.01) — related
- The CMA-A math finding in the PCER study is not statistically significant after correction for multiple comparisons — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
curiosity-corner-no-discernible-math-effects |
title |
Curiosity Corner shows no discernible effects on preschool math outcomes in the PCER randomized trial |
description |
Curiosity Corner shows no discernible effects on preschool math outcomes in the PCER randomized trial |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2009 |
generated |
by process:wiki-ingest on 2026-10-07 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — curiosity-corner-2009 |
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