Claims

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

Claim · All claims
Evidence · 1 study · causal r? · q4
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 i? A large multi-site cluster randomized study across two cohorts of high schools in 12 states and the District of Columbia found a positive effect on PSAT/NMSQT math scores in one cohort (effect size = +0.14), while the second cohort performed similarly to the comparison students. → Building Assets Reducing Risks (BARR) — Evidence Rating 2023

Evidence

Building Assets Reducing Risks (BARR) — Evidence Rating 2023

Building Assets Reducing Risks (BARR) — Evidence Rating. (2023). https://www.barrcenter.org

q4 · i? · causal · r?

A large multi-site cluster randomized study across two cohorts of high schools in 12 states and the District of Columbia (n = 3,443 and n = 3,829) found "a positive effect on PSAT/NMSQT math scores in one cohort (effect size = +0.14)". The second cohort "performed similarly to the comparison students"; the outcome measure differed from the NWEA MAP trials.

"A large multi-site cluster randomized study across two cohorts of high schools in 12 states and the District of Columbia (n = 3,443 and n = 3,829; 66% African American, 16% English learners, 15% special education, 64% free or reduced-price lunch) found a positive effect on PSAT/NMSQT math scores in one cohort (effect size = +0.14), while the second cohort performed similarly to the comparison students."

Discussion

Page metadata
Field Value
type claim
id barr-cluster-randomized-psat-math-mixed-cohorts
title 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
description 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
status review
evidence_strength mixed
newest_evidence 2023
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-2023

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