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 language | English (US) |
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Pages (from-to) | 677-685 |
Number of pages | 9 |
Journal | Evaluation Review |
Volume | 14 |
Issue number | 6 |
DOIs | |
State | Published - Jan 1 1990 |
All Science Journal Classification (ASJC) codes
- Arts and Humanities (miscellaneous)
- Social Sciences(all)