Implications of therapist effects for the design and analysis of comparative studies of psychotherapies.
Implications of therapist effects for the design and analysis of comparative studies of psychotherapies.
复制标题
治疗师效应对心理治疗比较研究的设计和分析的影响。
DOI：
10.1037//0022-006x.59.1.20
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发表时间：
1991
影响因子：
5.9
通讯作者：
Mintz,J
中科院分区：
文献类型：
--
作者：
Crits-Christoph,P;Mintz,J
技术上的原因，为什么治疗师应包括作为一个随机设计因素的嵌套分析（协）方差（AN [C] OVA）设计中常用的心理治疗研究。在某些情况下，ANOVA设计的不正确规范可能导致错误项的不正确估计，过度自由的F比和不可接受的I型错误的高风险。对研究的审查表明，绝大多数调查人员继续忽视这一问题。计算机模拟研究表明，相当大的偏见，可以引入不指定治疗师作为一个随机术语。最后，一个重新分析的数据，从10心理治疗结果的研究表明，治疗师的效果有很大的不同，有时可以很大。最近的研究，实施更好的质量控制似乎表明，由于治疗师的差异较小。这些结果的影响，为未来的研究设计进行了讨论。（PsycInfo数据库记录（c）2016阿帕，保留所有权利）
Technical reasons are presented as to why therapist should be included as a random design factor in the nested analysis of (co) variance (AN [C] OVA) design commonly used in psychotherapy research. Incorrect specification of the ANOVA design can, under some circumstances, result in incorrect estimation of the error term, overly liberal F ratios, and an unacceptably high risk of Type I errors. Review of studies indicates that the great majority of investigators continue to ignore this issue. Computer simulation studies revealed that considerable bias can be introduced by not specifying therapist as a random term. Finally, a reanalysis is presented of data from 10 psychotherapy outcome studies that indicated that therapist effects vary considerably and at times can be large. More recent studies that implement better quality controls appear to demonstrate less variance due to therapist. The implications of these results for the design of future studies are discussed.(PsycINFO Database Record (c) 2016 APA, all rights reserved)