WWC improvement indices for Too Good for Violence are +18 percentile points for behavior and +16 for knowledge, attitudes, and values¶

Claim · All claims
Evidence · 1 study · quant-synthesis r? · q3
Currency · newest study 2006 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? The WWC computed an average improvement index of +18 percentile points for behavior and +16 percentile points for knowledge, attitudes, and values. → What Works Clearinghouse 2006

Evidence¶

What Works Clearinghouse 2006¶

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

q3 · i? · quant-synthesis · r?

The WWC computed improvement indices based on effect sizes, representing the difference in percentile rank between the average intervention-condition student and the average comparison-condition student. The report states "The average improvement index is +18 percentile points for behavior and +16 percentile points for knowledge, attitudes, and values."

"The average improvement index is +18 percentile points for behavior and +16 percentile points for knowledge, attitudes, and values."

Discussion¶

Related Claims¶

• The WWC rated Too Good for Drugs and Violence as having positive effects on knowledge, attitudes, and values, with a cross-study domain-average effect size of 0.42 — related
• Too Good for Violence shows a substantively important but not statistically significant effect on students' knowledge, attitudes, and values — related
• In a randomized controlled trial, Too Good for Drugs and Violence produced statistically significant gains in perceptions of social and resistance skills and emotional competence — related
• The average effect across all four behavior outcome measures in the Page & D'Agostino study is positive and statistically significant (effect size 0.40) — related
• CSC/CDP shows no discernible effects on knowledge, attitudes, and values — related