Redshirting trends among U.S. kindergartners were examined between fall 2017 and 2025 using data on over three million students¶
Claim · All claims
Evidence · 1 study · associationalr2·q2
Currency · newest study 2026 · 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
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This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q2 i? The study documents redshirting trends between fall 2017 and 2025 using national data from over three million kindergartners on the NWEA MAP Growth K-2 assessment. → Megan Kuhfeld 2026
Evidence¶
Megan Kuhfeld 2026¶
Megan Kuhfeld, Sofia Postell. (2026). Should kindergartners be redshirted? Costs likely outweigh academic benefits. NWEA Research brief. https://www.nwea.org/research/publication/should-kindergartners-be-redshirted-costs-likely-outweigh-academic-benefits/
q2 · i? · associational · r2
An observational analysis of national MAP Growth K-2 assessment records covering "over three million kindergartners" documents how the prevalence of redshirting changed between fall 2017 and 2025; no effect size for the trend is printed in the available text.
"Using national data from over three million kindergartners from NWEA’s MAP Growth K-2 assessment, this study explores redshirting trends between fall 2017 and 2025."
Discussion¶
Related Claims¶
- Redshirting kindergartners likely carries costs that outweigh its academic benefits — related
- Following the 2021-22 kindergarten cohort through third grade tested whether redshirted students showed academic advantages — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
redshirting-trends-2017-2025-map-growth |
title |
Redshirting trends among U.S. kindergartners were examined between fall 2017 and 2025 using data on over three million students |
description |
Redshirting trends among U.S. |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2026 |
generated |
by process:wiki-ingest on 2026-10-08 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — megan-kuhfeld-2026 |
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