The authors report the findings of a meta-analysis of randomized controlled trials comparing motivational enhancement therapy with no treatment and alternative treatments. Mean effect-size data are reported. Implications and suggestions for counseling practice and future research are provided.

中文翻译：

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用于减少物质使用的激励增强疗法随机对照试验的荟萃分析

作者报告了一项随机对照试验的荟萃分析结果，该试验比较了激励增强疗法与无治疗和替代疗法。报告了平均效应量数据。提供了对咨询实践和未来研究的影响和建议。