Rodriguez Michael C, Maeda Yukiko
Department of Educational Psychology, University of Minnesota, Twin Cities Campus, Minneapolis, MN 55455, USA.
Psychol Methods. 2006 Sep;11(3):306-22. doi: 10.1037/1082-989X.11.3.306.
The meta-analysis of coefficient alpha across many studies is becoming more common in psychology by a methodology labeled reliability generalization. Existing reliability generalization studies have not used the sampling distribution of coefficient alpha for precision weighting and other common meta-analytic procedures. A framework is provided for a statistically grounded meta-analysis of coefficient alpha using its sampling distribution. Two empirical examples are offered to illustrate these methods, and limitations of reliability generalization are described.
通过一种名为信度泛化的方法，对众多研究中的信度系数α进行元分析在心理学领域正变得越来越普遍。现有的信度泛化研究尚未使用信度系数α的抽样分布进行精确加权及其他常见的元分析程序。本文提供了一个基于统计的框架，用于使用信度系数α的抽样分布对其进行元分析。给出了两个实证例子来说明这些方法，并描述了信度泛化的局限性。
