Mediators and moderators in meta-analysis: there's a reason we don't let dodo birds tell us which psychotherapies should have prizes.

Mediators and moderators in meta-analysis: there's a reason we don't let dodo birds tell us which psychotherapies should have prizes.
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荟萃分析中的中介者和调节者:我们不让渡渡鸟告诉我们哪些心理治疗应该获奖是有原因的。

DOI:
10.1037//0022-006x.59.6.883
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发表时间:
1991
影响因子:
5.9
通讯作者:
Sweeney,RB
Sweeney,RB
中科院分区:
心理学1区
文献类型:
--
作者:
ShadishJr,WR;Sweeney,RB

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在初级研究中,心理治疗研究人员经常寻找中介变量和调节变量,以帮助他们理解治疗和结果之间的关系。然而,对过去心理治疗荟萃分析的回顾显示,没有一个研究中介变量的可能作用;尽管所有这些研究都在寻找研究结果的调节因子,但这种搜索通常并不完整。本文阐述了在荟萃分析中研究这些中介变量和调节变量的方法,讨论了它们的优点和缺点,并说明了纳入这些变量如何改变荟萃分析结果的解释。特别是,对过去心理治疗荟萃分析的长期解释,即治疗方向对结果没有影响(或者正如渡渡鸟所说,”每个人都赢了,所有人都必须有奖品”)可能是错误的。取向可能会产生显著的差异,但只是凭借其调节和中介作用。(PsycInfo数据库记录(c)2016阿帕,保留所有权利)
In primary studies, psychotherapy researchers frequently search for mediator and moderator variables that can help them understand the relationship between treatment and outcome. Yet a review of past psychotherapy meta-analyses revealed that none examined the possible role of mediator variables; and although all of them searched for moderators of study outcome, that search was generally not as complete as it could have been. This article illustrates methods for studying such mediator and moderator variables in meta-analysis, discusses their advantages and disadvantages, and shows how the inclusion of these variables can change interpretation of meta-analytic results. In particular, the perennial interpretation of past psychotherapy meta-analyses that therapeutic orientation makes no difference to outcome (or as the dodo put it," Everyone has won and all must have prizes") may be wrong. Orientation may make significant difference, but only by virtue of its moderating and mediating effects.(PsycINFO Database Record (c) 2016 APA, all rights reserved)
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