1st graders in Amplify Science intervention classrooms significantly outperformed comparison classrooms on an NGSS-focused three-dimensional science learning assessment (g = 0.24)¶
Claim · All claims
Evidence · 1 study · causalr2·q4·i1small
Currency · newest study 2023 · 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
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.
q4 i1 Students in intervention classrooms scored significantly higher on the NGSS-focused science learning assessment, an effect of 0.24 standard deviation units (Hedges's g, p < .001). → Harris 2023
Evidence¶
Harris 2023¶
Harris, C. J., Murphy, R., Feng, M., & Rutstein, D. (2023). Supporting science learning and literacy development together: Initial results from a curriculum study in 1st grade classrooms. WestEd. https://eric.ed.gov/?id=ED638494
q4 · i1 · causal · r2
Group-randomized controlled trial across 40 schools and 2,035 1st graders, analyzed with multilevel linear regression controlling for school and student characteristics and prior reading achievement. The intervention effect was "statistically significant (p < .001)" with "an effect size of 0.24 standard deviation units (Hedges's g)."
"The estimated impact on performance on the science learning assessment was statistically significant (p < .001) and corresponds to an effect size of 0.24 standard deviation units (Hedges's g)."
Discussion¶
Related Claims¶
- 1st graders in Amplify Science intervention classrooms significantly outperformed comparison classrooms on science vocabulary in-use (g = 0.46) — related
- Amplify Science intervention showed only a small, non-significant effect on a standardized science assessment distal to the NGSS (g = 0.09) — related
- 1st graders in Amplify Science intervention classrooms performed similarly to comparison classrooms on a standardized reading assessment (effect size below 0.01)
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
amplify-science-gains-ngss-science-learning-assessment |
title |
1st graders in Amplify Science intervention classrooms significantly outperformed comparison classrooms on an NGSS-focused three-dimensional science learning assessment (g = 0.24) |
description |
1st graders in Amplify Science intervention classrooms significantly outperformed comparison classrooms on an NGSS-focused three-dimensional science learning assessment (g = 0.24) |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2023 |
generated |
by process:wiki-ingest on 2026-10-09 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — harris-2023 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.