At the end of first grade, children whose kindergarten entry was delayed demonstrated slightly higher reading knowledge and skills than those who started on time¶

Claim · All claims
Evidence · 1 study · associational r? · q3
Currency · newest study 2006 · checked against its sources 2026-10-17 (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? Delayed entrants demonstrated slightly higher reading knowledge and skills at the end of first grade than on-time starters. → Malone 2006

Evidence¶

Malone 2006¶

Malone, L. M.; West, J.; Denton Flanagan, K.; Park, J. (2006). The Early Reading and Mathematics Achievement of Children Who Repeated Kindergarten or Who Began School a Year Late. Washington, DC: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics. https://www.mathematica.org/publications/the-early-reading-and-mathematics-achievement-of-children-who-repeated-kindergarten-or-who-began-school-a-year-late

q3 · i? · associational · r?

ECLS-K comparison of delayed-entry children with on-time starters on end-of-first-grade reading; the report states delayed entrants "demonstrated slightly higher reading knowledge and skills". The hedge slightly is retained; no effect size is printed.

"At the end of first grade, children whose kindergarten entry was delayed demonstrated slightly higher reading knowledge and skills than those who started on time"

Discussion¶

Learner Variables¶

Age and Developmental Stage — predictor: learners who differ on it differ in outcomes

Redshirted students' early-grade academic advantage over on-time peers fades as students move through school — the general claim this finding bears on, with the studies behind it
At the end of first grade, children whose kindergarten entry was delayed were behind their classmates who began kindergarten on time in math — related
At the end of first grade, children who repeated kindergarten had lower reading and math knowledge and skills than children who started on time — reports the opposite
In fall 1998, five percent of children were repeating kindergarten and six percent were attending kindergarten for the first time despite being age-eligible a year earlier — related
Being a year older at kindergarten entry leads to higher initial achievement — related

Page metadata

Field	Value
`type`	`claim`
`id`	`delayed-entrants-slightly-higher-reading-first-grade`
`title`	`At the end of first grade, children whose kindergarten entry was delayed demonstrated slightly higher reading knowledge and skills than those who started on time`
`description`	`At the end of first grade, children whose kindergarten entry was delayed demonstrated slightly higher reading knowledge and skills than those who started on time`
`status`	`review`
`evidence_strength`	`moderate`
`newest_evidence`	`2006`
`source_checked`	`2026-10-17`
`generated`	by `process:wiki-ingest` on `2026-10-08`
`trust`	unverified — no one has confirmed this page's content
`sources`	1 — `malone-2006`

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