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Does the group in group psychotherapy matter? A meta-analysis of the intraclass correlation coefficient in group treatment research.
Journal of Consulting and Clinical Psychology ( IF 7.156 ) Pub Date : 2020-04-01 , DOI: 10.1037/ccp0000474
D. Martin Kivlighan , Ariel M. Aloe , Marie C. Adams , Yunkyoung Loh Garrison , Ashlie Obrecht , Yu Chak Sunny Ho , Ji Youn Cindy Kim , Isaac W. Hooley , Laurence Chan , Kuo Deng

OBJECTIVE Over the last 3 decades, group treatment researchers have become increasingly knowledgeable of the impact of within-group dependency on analyses of group treatment data and of mutual influence processes that occur within therapy groups. Despite these advancements, there remains a lack of consensus on the magnitude of mutual influence, or group effects, in group treatment research. As such, this study sought to estimate the size of group effects on members' posttreatment outcomes by meta-analyzing the intraclass correlation coefficients (ICCs) in group treatment research. In addition, we tested several moderators of the ICC, including outcome type, outcome reactivity, outcome specificity, group format, treatment length, and group size. METHOD Using robust variance estimations, we meta-analyzed 169 effect sizes from 37 group treatment studies. RESULTS Findings indicated an average ICC of 0.06. Group size, group format, treatment length, outcome specificity, and outcome type did not significantly moderate the ICC; however, we did find evidence to suggest that the ICC varies as a function of outcome reactivity, with observer-rated outcome measures resulting in the largest ICC. CONCLUSION These findings suggest that interdependence in group treatment research is an important concept both theoretically and statistically. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

中文翻译:

团体心理治疗中的团体重要吗?团体治疗研究中类内相关系数的荟萃分析。

目的在过去的30年中,团体治疗研究人员越来越了解团体内部依赖性对团体治疗数据的分析以及在团体内发生的相互影响过程的影响。尽管取得了这些进步,但是在团体治疗研究中,对于相互影响或团体效应的大小仍然缺乏共识。因此,本研究试图通过对群体治疗研究中的类内相关系数(ICC)进行荟萃分析,来估计群体对成员治疗后结果的影响大小。此外,我们测试了ICC的多个主持人,包括结局类型,结局反应性,结局特异性,组形式,治疗时间和组大小。方法使用稳健的方差估计,我们对37个小组治疗研究中的169种效应量进行了荟萃分析。结果发现表明平均ICC为0.06。小组规模,小组形式,治疗时间,结局特异性和结局类型均未显着缓解ICC。但是,我们确实找到了证据表明,ICC随结果反应性而变,观察者评定的结果量度导致最大的ICC。结论这些发现表明,团体治疗研究中的相互依赖性在理论上和统计学上都是一个重要的概念。(PsycINFO数据库记录(c)2019 APA,保留所有权利)。我们确实找到证据表明,ICC随结果反应性而变,观察者评定的结果量度导致最大的ICC。结论这些发现表明,团体治疗研究中的相互依赖性在理论上和统计学上都是一个重要的概念。(PsycINFO数据库记录(c)2019 APA,保留所有权利)。我们确实找到证据表明,ICC随结果反应性而变,观察者评定的结果量度导致最大的ICC。结论这些发现表明,团体治疗研究中的相互依赖性在理论上和统计学上都是一个重要的概念。(PsycINFO数据库记录(c)2019 APA,保留所有权利)。
更新日期:2020-04-01
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