| 从效应量应有的性质看中介效应量的合理性 |
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| 引用本文： | 温忠麟,范息涛,叶宝娟,陈宇帅.从效应量应有的性质看中介效应量的合理性[J].心理学报,2016,48(4):435-443. |
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| 作者姓名： | 温忠麟 范息涛 叶宝娟 陈宇帅 |
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| 作者单位： | (;1.华南师范大学心理应用研究中心/心理学院, 广州 510631) (;2.澳门大学, 澳门)
(;3.江西师范大学心理学院, 南昌 330022) |
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| 基金项目： | 国家自然科学基金(31271116,31400909);教育部人文社会科学研究青年基金项目(13YJC190029)资助 |
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| 摘 要： | 效应量的作用有两个方面, 一是弥补了统计检验的不足, 二是使得效应有可比性。结合统计显著性和效应量, 才能得出适当的统计结论。效应量应当具有一些基本性质, 包括与测量单位无关、单调性、不受样本容量的影响。国际上流行的中介效应量κ平方就是因为缺乏单调性而引发质疑和研究, 从而被彻底终结了其作为中介效应量的合法性。R平方型中介效应量同样有缺乏单调性的问题。文末讨论了如何报告中介效应量以及有待研究的问题。
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| 关 键 词： | 中介效应 间接效应 效应量 κ平方 |
| 收稿时间： | 2015-03-03 |
Characteristics of an effect size and appropriateness of mediation effect size measures revisited |
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| WEN Zhonglin;FAN Xitao;YE Baojuan;CHEN Yushuai.Characteristics of an effect size and appropriateness of mediation effect size measures revisited[J].Acta Psychologica Sinica,2016,48(4):435-443. |
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| Authors: | WEN Zhonglin;FAN Xitao;YE Baojuan;CHEN Yushuai |
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| Institution: | (;1. Center for Studies of Psychological Application/School of Psychology, South China Normal University, Guangzhou 510631, China) ;
(;2. University of Macau, Macau, China) (;3. School of Psychology, Jiangxi Normal University, Nanchang 330022, China) |
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| Abstract: | Since Preacher and Kelley (2011) proposed kappa-squared (k2) as a mediation effect size measure, it has become popular in mediation analyses, as shown by its appearance in research literature (e.g., Athay, 2012; Field, 2013). Furthermore, a special on-line calculator for computing kappa-squared also became available, making its use in research practice very convenient. Unfortunately, Wen and Fan (2015) recently demonstrated both logically and mathematically that kappa-squared has fatal flaws in its definition and calculation, which should put an end to its use in mediation analysis. This article evaluates the appropriateness of the current mediation effect size measures, based on the considerations of the expected characteristics of an effect size. |
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| Keywords: | mediation effect indirect effect effect size kappa-squared |
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