Doors to Discovery™ shows no discernible effects on preschool math (domain-average effect size 0.01)¶
Claim · All claims
Evidence · 1 study · causalr2·q2·i0negligible
Currency · newest study 2013 · 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.
q2 i0 In one study meeting standards with reservations, math outcome differences between the Doors to Discovery™ group and the comparison group were neither statistically significant nor substantively important (domain-average effect size 0.01). → Doors to Discovery™ WWC Intervention Report 2013
Evidence¶
Doors to Discovery™ WWC Intervention Report 2013¶
Doors to Discovery™ WWC Intervention Report, U.S. Department of Education, What Works Clearinghouse. (2013). Doors to Discovery™ Intervention Report, Early Childhood Education. https://ies.ed.gov/ncee/wwc/InterventionReport/153
q2 · i0 · causal · r2
PCER Consortium (2008, Chapter 6) randomized study, 29 classrooms/183 children, assessing math with the WJ-III Applied Problems subtest, the CMA-A Composite, and the Building Blocks Shape Composition task. Effect sizes were 0.00, 0.16, and –0.13; domain average 0.01, all p > 0.05.
"The authors reported that differences between the Doors to Discovery™ group and the comparison group were not statistically significant and, according to WWC criteria, were not large enough to be considered substantively important."
Discussion¶
Related Claims¶
- Doors to Discovery™ shows no discernible effects on preschool phonological processing (effect size 0.14, not significant) — related
- The Bright Beginnings preschool curriculum shows no discernible effects on preschool children's school readiness across oral language, print knowledge, phonological processing, and math domains — related
- Doors to Discovery™ shows potentially positive effects on preschool print knowledge, with mixed findings across two studies — related
- Doors to Discovery™ shows potentially positive effects on preschool oral language (PPVT-III effect size 0.27, not statistically significant) — related
- 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 math outcomes in the PCER randomized trial — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
doors-to-discovery-no-discernible-math-effects |
title |
Doors to Discovery™ shows no discernible effects on preschool math (domain-average effect size 0.01) |
description |
Doors to Discovery™ shows no discernible effects on preschool math (domain-average effect size 0.01) |
status |
review |
evidence_strength |
weak |
newest_evidence |
2013 |
generated |
by process:wiki-ingest on 2026-10-07 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — doors-to-discovery-wwc-intervention-report-2013 |
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