Claims

At end of program, the largest Too Good for Drugs effect was on teacher-rated prosocial behaviors (effect size 0.52), not statistically significant after WWC correction

Claim · All claims
Evidence · 1 study · causal r? · q3 · i2 medium
Currency · newest study 2006 · 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 i2 At end of program, teacher-rated prosocial behaviors favored the intervention group with an effect size of 0.52, not statistically significant as calculated by the WWC. → What Works Clearinghouse 2006

Evidence

What Works Clearinghouse 2006

What Works Clearinghouse, U.S. Department of Education. (2006). WWC Intervention Report: Too Good for Drugs. https://www.mendezfoundation.org

q3 · i2 · causal · r?

End-of-program findings from the Bacon (2003) randomized controlled trial reported in Appendix A4.1: intervention mean 3.79 (0.87) versus comparison 3.37 (0.72), mean difference 0.42, effect size 0.52, improvement index +20, marked ns after WWC clustering correction. Personal and social skills (0.29) and inappropriate behaviors (0.16) showed smaller effects.

"Prosocial behaviors Grades 3–4 6/1,051 3.79 (0.87) 3.37 (0.72) 0.42 0.52 ns +20"

Discussion

Page metadata
Field Value
type claim
id too-good-for-drugs-prosocial-behavior-end-of-program-es-052
title At end of program, the largest Too Good for Drugs effect was on teacher-rated prosocial behaviors (effect size 0.52), not statistically significant after WWC correction
description At end of program, the largest Too Good for Drugs effect was on teacher-rated prosocial behaviors (effect size 0.52), not statistically significant after WWC correction
status review
evidence_strength moderate
newest_evidence 2006
generated by process:wiki-ingest on 2026-10-07
trust unverified — no one has confirmed this page's content
sources 1 — what-works-clearinghouse-2006

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