Attrition in Substance Abuse Prevention Research

William B. Hansen, Nancy S. Tobler and John W. Graham
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William B. Hansen: Wake Forest University
Nancy S. Tobler: State University of New York at Albany
John W. Graham: University of Southern California

Evaluation Review, 1990, vol. 14, issue 6, 677-685

Abstract: A meta-analysis of substance abuse prevention studies revealed that the mean proportion of subjects retained dropped from 81.4% at 3-month to 67.5% at 3-year follow-ups. Time from pretest alone accounted for less than 5% of the variance. Other available predictors of retention were not significant. Researchers are encouraged to interpret their results in light of these normative data and to adopt second-effort strategies to reduce attrition.

Date: 1990
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Persistent link: https://EconPapers.repec.org/RePEc:sae:evarev:v:14:y:1990:i:6:p:677-685

DOI: 10.1177/0193841X9001400608

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