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Meta-analysis of coefficient alpha
Michael C Rodriguez1, Yukiko Maeda
1Department of Educational Psychology, University of Minnesota, Twin Cities Campus, Minneapolis, MN 55455, USA. mcrdz@umn.edu
Abstract:
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.
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