. Author manuscript; available in PMC: 2008 Aug 1.

Published in final edited form as: Am J Prev Med. 2007 Aug;33(2 Suppl):S130–S143. doi: 10.1016/j.amepre.2007.04.011

Table 13.

regression model for effect size moderators for comprehensive programs (N=21)

Study Characteristic	β
Method characteristics
Non-random assignment	-.03
Format of program
Universal (1) vs. Pull-out (2)	-.43^*
Amount of treatment
Frequency of sessions per week	.53^*
Program duration (weeks)	-.02

Note: weighted random effects analysis; coefficients are standardized.

^**

p<.05

p<.10