Attrition in Substance Abuse Prevention Research: A Meta-Analysis of 85 Longitudinally Followed Cohorts.

Hansen, William B.; And Others

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Peer reviewed

ERIC Number: EJ419371

Record Type: CIJE

Publication Date: 1990

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: ISSN-0193-841X

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Attrition in Substance Abuse Prevention Research: A Meta-Analysis of 85 Longitudinally Followed Cohorts.

Hansen, William B.; And Others

Evaluation Review, v14 n6 p677-85 Dec 1990

A meta-analysis of school-based substance abuse prevention studies revealed that the mean proportion of subjects retained dropped from 81.4 percent at the three-month followup to 67.5 percent at the three-year followup. Researchers should interpret their results in light of these normative data and adopt second-effort strategies to reduce attrition. (TJH)

Descriptors: Attrition (Research Studies), Cohort Analysis, Educational Research, Followup Studies, Meta Analysis, Norms, Prevention, Program Evaluation, Research Problems, Sample Size, School Activities, Substance Abuse

Publication Type: Journal Articles; Reports - Research

Education Level: N/A

Audience: N/A

Language: English

Sponsor: N/A

Authoring Institution: N/A

Grant or Contract Numbers: N/A

Author Affiliations: N/A