Kindergarten entry-age effects do not differ by gender or race¶

Claim · All claims
Evidence · 1 study · causal r? · q3
Currency · newest study 2020 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · 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? Estimated entry-age effects on achievement and growth are statistically similar across gender and racial groups. → Angela Johnson 2020

Evidence¶

Angela Johnson 2020¶

Angela Johnson, Megan Kuhfeld. (2020). Impacts of school entry age on academic growth through 2nd Grade: A multi-state regression discontinuity analysis. NWEA Research working paper. https://www.nwea.org/research/publication/impacts-of-school-entry-age-on-academic-growth-through-2nd-grade-a-multi-state-regression-discontinuity-analysis/ doi:10.1080/19345747.2021.1894519

q3 · i? · causal · r?

Moderator analysis within the multi-state regression discontinuity study. The abstract states "Effects do not differ by gender or race"; no test statistics or effect sizes are printed in the available text, so equivalence was not quantified here.

"Effects do not differ by gender or race."

Discussion¶

Learner Variables¶

Gender — moderator: an instructional effect differs by group

GenAI function, intervention duration, publication year, and gender were not significant moderators of GenAI's motivational effect — the general claim this finding bears on, with the studies behind it
DIF analyses indicate the vast majority of MAP Growth items show negligible differential item functioning across gender and racial/ethnic groups — related
Validity evidence for the IRLA is disaggregated across grade, program, and race/ethnicity — related
Graduation rates by age 19 in Chicago varied substantially by race/ethnicity and gender, with African-American boys lowest (39 percent) and Asian girls highest (85 percent) — related
High school civic engagement is associated with higher graduation rates for all students regardless of age at entry, race, or gender — related
Being a year older at kindergarten entry leads to higher initial achievement — related
Prior evidence on school entry age lacked causal estimates of growth through early grades — related

Page metadata

Field	Value
`type`	`claim`
`id`	`entry-age-effects-no-gender-race-differences`
`title`	`Kindergarten entry-age effects do not differ by gender or race`
`description`	`Kindergarten entry-age effects do not differ by gender or race`
`status`	`review`
`evidence_strength`	`moderate`
`newest_evidence`	`2020`
`source_checked`	`2026-10-20`
`generated`	by `process:wiki-ingest` on `2026-10-09`
`trust`	unverified — no one has confirmed this page's content
`sources`	1 — `angela-johnson-2020`

Frontmatter is the page's machine-readable record — see the Schema & Guide.