Regression discontinuity embedded in a piecewise multilevel growth model for entry-age effects¶
Research Method · All research methods
Evidence · 2 claims (2 for) · 1 study (1 causal),q3· 0 of 1 report an effect size · 2 claims rest on one study
Description¶
The paper introduces a modeling approach that combines a regression discontinuity design with a piecewise multilevel growth model, allowing causal estimates of entry-age effects on both initial achievement and subsequent growth rates. The authors state, "We embed regression discontinuity into a piecewise multilevel growth model and apply it to rich assessment data from three states." This extends prior work that, per the authors, "estimated either associations between school entry age and academic growth or causal effects on achievement measured at one or two points."
Accounts¶
- Regression discontinuity embedded in a piecewise multilevel growth model for entry-age effects: The paper introduces a modeling approach that combines a regression discontinuity design with a piecewise multilevel growth model, allowing causal estimates of entry-age effects on both initial achievement and subsequent growth rates. The authors state, "We embed regression discontinuity into a piecewise multilevel growth model and apply it to rich assessment data from three states." This extends prior work that, per the authors, "estimated either associations between school entry age and academic growth or causal effects on achievement measured at one or two points." (Angela Johnson (2020))
Claims¶
- Being a year older at kindergarten entry leads to higher initial achievement [+M]
- Older entrants show higher kindergarten growth rates but lower growth rates in 1st and 2nd grades [+M]
Related Research Methods¶
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Key Sources¶
- 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/
Page metadata
| Field | Value |
|---|---|
type |
research-method |
id |
regression-discontinuity-embedded-in-a-piecewise-multilevel-growth-model-for-entry-age-eff |
title |
Regression discontinuity embedded in a piecewise multilevel growth model for entry-age effects |
description |
The paper introduces a modeling approach that combines a regression discontinuity design with a piecewise multilevel growth model, allowing causal estimates of entry-age effects on both initial achievement and subsequent growth rates. |
status |
review |
moved_from |
theory/rd-piecewise-growth-model-entry-age |
generated |
by process:sweep-kinds on 2026-10-10 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — angela-johnson-2020 |
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