Attrition in substance abuse prevention research: A Meta–Analysis of 85 Longitudinally Followed Cohorts

William B. Hansen, Nancy S. Tobler, John W. Graham

Research output: Contribution to journalArticlepeer-review

123 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)677-685
Number of pages9
JournalEvaluation Review
Volume14
Issue number6
DOIs
StatePublished - Jan 1 1990

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Social Sciences(all)

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