Between-center differences in preschool cognitive and SEL outcomes were mostly small in the United States but more pronounced in Germany and the United Kingdom¶
Claim · All claims
Evidence · 1 study · quant-synthesisr3·q2
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person · recheck by 2030: baselines and conditions change
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 i? Integrating prior large-scale studies, the article reports mostly small between-center differences in US preschool outcomes (e.g., Mdn ρCenter = 0.03 for cognitive outcomes with standardized tests) that were (much) more pronounced in Germany and the United Kingdom (Mdn ρCenter = 0.13/0.17 for cognitive outcomes). → Martin Brunner 2025
Evidence¶
Martin Brunner 2025¶
Martin Brunner, Sophie E. Stallasch, Cordula Artelt, Oliver Lüdtke. (2025). An Individual Participant Data Meta-Analysis to Support Power Analyses for Randomized Intervention Studies in Preschool: Cognitive and Socio-Emotional Learning Outcomes. Educational Psychology Review. https://doi.org/10.1007/s10648-024-09981-z
q2 · i? · quant-synthesis · r3
The article's integration of scattered prior studies (US Head Start supplements, Jacob et al., German and UK large-scale samples) reports median between-center ICCs, noting US values like "Mdn ρCenter = 0.03" versus 0.13/0.17 in Germany/UK. These are auxiliary results from other studies, not new analyses by this article.
"First, in the United States, there were mostly small between-center differences in cognitive outcomes (e.g., when applying standardized tests: Mdn ρCenter = 0.03) and SEL outcomes (educator reports: Mdn ρ Center = 0.01; parent reports: Mdn ρ Center = 0.00). These between-center differences were (much) more pronounced in Germany and the United Kingdom for both cognitive (Mdn ρCenter = 0.13/0.17)"
Discussion¶
Related Claims¶
- Design parameters for preschool outcomes show substantial heterogeneity across populations, as reflected in wide 95% prediction intervals — related
- Typical R2Child values with sociodemographic and baseline covariates were around 0.18–0.26 for preschool cognitive and SEL outcomes in US data — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
preschool-between-center-differences-vary-by-country |
title |
Between-center differences in preschool cognitive and SEL outcomes were mostly small in the United States but more pronounced in Germany and the United Kingdom |
description |
Between-center differences in preschool cognitive and SEL outcomes were mostly small in the United States but more pronounced in Germany and the United Kingdom |
status |
review |
evidence_strength |
weak |
newest_evidence |
2025 |
recheck_by |
2030 |
generated |
by process:wiki-ingest on 2026-10-19 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — martin-brunner-2025 |
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