Two student-level randomized studies in California, Maine, and Minnesota high schools found significant positive impacts on NWEA MAP reading (average effect size +0.09)¶
Claim · All claims
Evidence · 1 study · causalr?·q3·i1small
Currency · newest study 2024 · 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.
q3 i1 Two student-level randomized studies in high schools in California, Maine, and Minnesota found statistically significant positive impacts on reading outcomes measured by NWEA MAP, average effect size +0.09. → Building Assets Reducing Risks (BARR) — Evidence Rating 2024
Evidence¶
Building Assets Reducing Risks (BARR) — Evidence Rating 2024¶
Building Assets Reducing Risks (BARR) — Evidence Rating. (2024). https://www.evidenceforlearning.org/evidence-rating/building-assets-reducing-risks-barr/
q3 · i1 · causal · r?
Student-level randomized studies in high schools in three states (n = 2,126) found "statistically significant positive impacts on reading outcomes measured by NWEA MAP" with an average effect size of +0.09.
"Two student-level randomized studies conducted in high schools in California, Maine, and Minnesota (n = 2,126) found statistically significant positive impacts on reading outcomes measured by NWEA MAP (average effect size = +0.09)."
Discussion¶
Related Claims¶
- BARR produces a small statistically significant positive effect on NWEA MAP math outcomes in a multi-site student-level randomized trial — related
- BARR improves reading achievement across grades 7–12 with an average effect size of +0.08 across three randomized studies — a broader claim this one bears on
- Across three randomized studies in grades 7–12, BARR shows positive effects on math achievement, qualifying it for a Strong rating with an average effect size of +0.09 — related
- In a large suburban southern California high school, BARR produced a significant positive reading effect (+0.14), larger for struggling readers (+0.21) — a narrower finding that bears on this claim
- BARR produces a larger statistically significant effect on NWEA MAP math scores in a single-school student-level randomized study, stronger for struggling students — related
- Assignment to BookNook tutoring produces a small but statistically significant increase in reading growth on the NWEA MAP for grade 1-4 students — related
- In a large multi-site cluster randomized study, BARR improved PSAT/NMSQT math scores in one cohort but the second cohort performed similarly to comparison students — related
- DreamBox Learning produced a statistically significant positive effect on MAP overall math scores for K–1 students — related
- Progress Learning showed statistically significant positive impacts on both NWEA MAP and STAAR math scores in Forney ISD, Texas — related
- Progress Learning showed a statistically significant positive impact on NWEA MAP reading scores for Grades 3-6 in Forney ISD, Texas — related
- A lottery-based randomized controlled trial of KIPP middle schools found statistically significant positive effects on state math and reading tests — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
barr-student-level-rcts-nwea-map-reading-009 |
title |
Two student-level randomized studies in California, Maine, and Minnesota high schools found significant positive impacts on NWEA MAP reading (average effect size +0.09) |
description |
Two student-level randomized studies in California, Maine, and Minnesota high schools found significant positive impacts on NWEA MAP reading (average effect size +0.09) |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2024 |
generated |
by process:wiki-ingest on 2026-10-07 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — building-assets-reducing-risks-barr-evidence-rating-2024 |
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