APPENDIX K
Basis of Program/Evaluation Exclusion from Category of Effective Interventions

Basis of Exclusion	Number of Programs Excluded (N = 44)
Low Confidence Design	N = 19
Weak comparison No comparison	n = 10 n = 9
Medium Confidence Design	N = 12
Reasonable design but insufficient evidence of group equivalence Earlier or weaker implementation of an effective program	n = 8 n = 4
High Confidence Design	N = 5
Good design but no outcomes Good design but intervention addressed knowledge or attitudes only	n = 3 n = 2
Information Missing from Evaluation or Report	N = 8