Zero Effects in Substance Abuse Programs

David Rindskopf and Leonard Saxe
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David Rindskopf: City University of New York
Leonard Saxe: City University of New York

Evaluation Review, 1998, vol. 22, issue 1, 78-94

Abstract: The evaluation of community-based programs poses special design and analysis problems. The present article focuses on two major types of errors that can occur in such evaluations: false positives—incorrectly declaring a program to be effective—and false negatives—incorrectly declaring a program to be ineffective. The evaluation of a national demonstration of community- based programs to reduce substance abuse, Fighting Back, is used to illustrate several ap proaches to reduce the probability of errors. Both those errors that are affected by the design and those by analytic approaches are considered. Ways to assess multiple outcomes and to match the complexity of the program with design and analytic strategies are proposed. Community trials are complex interventions, and, although they can provide very useful information, their outcomes have to be understood in terms of the constructs they test and the contexts within which they are carried out.

Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:sae:evarev:v:22:y:1998:i:1:p:78-94

DOI: 10.1177/0193841X9802200104

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