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Friday, June 5, 2009

A Preliminary Study of the Population-Adjusted Effectiveness of Substance Abuse Prevention Programming: Towards Making IOM Program Types Comparable
The Journal of Primary Prevention Volume 30, Number 2 / March, 2009
pp. 89-107


A meta-analysis was performed on 43 studies of 25 programs to examine program comparability across IOM categories. When examining unadjusted effect sizes at the individual level, universal programs were modestly more successful in reducing tobacco use, but selective and indicated programs were modestly more successful in reducing alcohol and marijuana use. When adjusted to the population level, the average effect sizes for selective and indicated programs were reduced by approximately half. At the population level, universal programs were more successful in reducing tobacco and marijuana use and selective and indicated programs were more successful in reducing alcohol use.




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