Early Childhood Longitudinal Study, Kindergarten Class of 1998-1999 (ECLS-K)¶
Product or Programme · All products and programmes
Evidence · 4 claims (4 for) · 1 study (1 associational),q3· 0 of 1 report an effect size · 4 claims rest on one study
Description¶
ECLS-K is a nationally representative longitudinal dataset tracking children from kindergarten through elementary school, conducted by the National Center for Education Statistics within the U.S. Department of Education's Institute of Education Sciences.
Components¶
Claims¶
- At the end of first grade, children whose kindergarten entry was delayed were behind their classmates who began kindergarten on time in math [+W]
- 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 [+W]
- 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 [+W]
- At the end of first grade, children who repeated kindergarten had lower reading and math knowledge and skills than children who started on time [+W]
Related Products and Programmes¶
Key Sources¶
- 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
Page metadata
| Field | Value |
|---|---|
type |
product |
id |
early-childhood-longitudinal-study-kindergarten-class-of-1998-1999-ecls-k |
title |
Early Childhood Longitudinal Study, Kindergarten Class of 1998-1999 (ECLS-K) |
description |
ECLS-K is a nationally representative longitudinal dataset tracking children from kindergarten through elementary school, conducted by the National Center for Education Statistics within the U.S. |
status |
review |
moved_from |
element/ecls-k-1998-99-longitudinal-dataset |
product_kind |
dataset |
generated |
by process:sweep-kinds on 2026-10-10 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — malone-2006 |
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