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Am Psychol. 1993 Dec;48(12):1181-209.

The efficacy of psychological, educational, and behavioral treatment. Confirmation from meta-analysis.

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1
Department of Human Resources, Vanderbilt University, Nashville, TN 37203.

Abstract

Conventional reviews of research on the efficacy of psychological, educational, and behavioral treatments often find considerable variation in outcome among studies and, as a consequence, fail to reach firm conclusions about the overall effectiveness of the interventions in question. In contrast meta-analytic reviews show a strong, dramatic pattern of positive overall effects that cannot readily be explained as artifacts of meta-analytic technique or generalized placebo effects. Moreover, the effects are not so small that they can be dismissed as lacking practical or clinical significance. Although meta-analysis has limitations, there are good reasons to believe that its results are more credible than those of conventional reviews and to conclude that well-developed psychological, educational, and behavioral treatment is generally efficacious.

PMID:
8297057
[Indexed for MEDLINE]

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