Claims

The average effect across all four behavior outcome measures in the Page & D'Agostino study is positive and statistically significant (effect size 0.40)

Claim · All claims
Evidence · 1 study · causal r2 · q2 · 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.

q2 i2 The WWC-computed domain average effect size for behavior was 0.40, statistically significant, corresponding to an average improvement index of +16 percentile points (range +10 to +23). → What Works Clearinghouse 2006

Evidence

What Works Clearinghouse 2006

What Works Clearinghouse, U.S. Department of Education. (2006). WWC Intervention Report: Connect with Kids. https://ies.ed.gov/ncee/wwc/InterventionReport/104

q2 · i2 · causal · r2

WWC calculations across the four student survey outcomes in the quasi-experimental study. Appendix A3 reports a domain average effect size of 0.40, statistically significant, and an average improvement index for behavior of +16 percentile points.

"The average effect across all four outcome measures was positive and statistically significant."

Discussion

Page metadata
Field Value
type claim
id cwk-domain-average-behavior-effect
title The average effect across all four behavior outcome measures in the Page & D'Agostino study is positive and statistically significant (effect size 0.40)
description The average effect across all four behavior outcome measures in the Page & D'Agostino study is positive and statistically significant (effect size 0.40)
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

Frontmatter is the page's machine-readable record — see the Schema & Guide.