The Impact of Treatment Components Suggested by the Psychological Flexibility Model: A Meta-Analysis of Laboratory-Based Component Studies
The Impact of Treatment Components Suggested by the Psychological Flexibility Model: A Meta-Analysis of Laboratory-Based Component Studies
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DOI：
10.1016/j.beth.2012.05.003
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发表时间：
2012-12-01
期刊：
影响因子：
3.7
通讯作者：
Hayes, Steven C.
中科院分区：
文献类型：
--
作者：
Levin, Michael E.;Hildebrandt, Mikaela J.;Hayes, Steven C.
心理治疗研究的一个重要方面是检查干预方法的理论模型。基于实验室的组件研究是这一奋进的一种有用方法，因为它提供了一种实验手段来测试与干预组件及其高水平控制和精确度参与的变更过程相关的问题。对66项基于实验室的成分研究进行了荟萃分析，这些研究评估了接受和承诺疗法（接受，分散，自我作为背景，承诺行动，价值观和当下）的心理灵活性模型所建议的治疗元素和过程，但也涉及各种认知行为疗法的背景形式。与非活动比较条件相比，观察到接受，去融合，现在时刻，值，混合正念组件和值加正念组件条件的显着正效应大小。额外的分析为心理灵活性模型提供了进一步的支持，发现理论上规定的结果的效应量更大，理论上不同干预措施之间的预期差异更大，包括经验方法的组成条件的效应量更大（例如，比喻，练习）比那些只有一个理由。风险/苦恼和便利样本之间的效应大小没有差异。与元分析和基于实验室的组件研究的未来方向的限制进行了讨论。
An important aspect of psychotherapy research is the examination of the theoretical models underlying intervention approaches. Laboratory-based component research is one useful methodology for this endeavor as it provides an experimental means of testing questions related to intervention components and the change process they engage with a high level of control and precision. A meta-analysis was conducted of 66 laboratory-based component studies evaluating treatment elements and processes that are suggested by the psychological flexibility model that underlies Acceptance and Commitment Therapy (acceptance, defusion, self as context, committed action, values, and present moment), but also touches on a variety of contextual forms of cognitive behavior therapy. Significant positive effect sizes were observed for acceptance, defusion, present moment, values, mixed mindfulness components, and values plus mindfulness component conditions compared to inactive comparison conditions. Additional analyses provided further support for the psychological flexibility model, finding larger effect sizes for theoretically specified outcomes, expected differences between theoretically distinct interventions, and larger effect sizes for component conditions that included experiential methods (e.g., metaphors, exercises) than those with a rationale alone. Effect sizes did not differ between at-risk/distressed and convenience samples. Limitations with the meta-analysis and future directions for laboratory-based component research are discussed.