Claims

Good Behavior Game shows uncertain effects on mathematics achievement, with an effect size of 0.26 that is not statistically significant

Claim · All claims
Evidence · 1 study · quant-synthesis r1 · q2 · i1 small
Currency · newest study 2023 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · 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.

q2 i1 In one study, the effect of Good Behavior Game on mathematics achievement was 0.26 (improvement index +10) and not statistically significant (p=0.12). → What Works Clearinghouse 2023

Evidence

What Works Clearinghouse 2023

What Works Clearinghouse, Institute of Education Sciences, U.S. Department of Education. (2023). Good Behavior Game. https://ies.ed.gov/ncee/wwc/InterventionReport/728

q2 · i1 · quant-synthesis · r1

WWC synthesis of one study (Weis et al., 2015) using the NWEA Mathematics test with 703 students in grades 1 and 2 across 6 school districts; the summary reports an effect size of 0.26 that is not statistically significant, described as "uncertain effects 0.26 +10 No (p=0.12)".

"Summary for mathematics achievement: uncertain effects 0.26 +10 No (p=0.12)"

Discussion

Page metadata
Field Value
type claim
id gbg-uncertain-math-effects
title Good Behavior Game shows uncertain effects on mathematics achievement, with an effect size of 0.26 that is not statistically significant
description Good Behavior Game shows uncertain effects on mathematics achievement, with an effect size of 0.26 that is not statistically significant
status review
evidence_strength weak
newest_evidence 2023
source_checked 2026-10-20
generated by process:wiki-ingest on 2026-10-07
trust unverified — no one has confirmed this page's content
sources 1 — what-works-clearinghouse-2023

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