Meta-analysis of coefficient alpha

Michael C. Rodriguez, Yukiko Maeda

Research output: Contribution to journalArticlepeer-review

159 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)306-322
Number of pages17
JournalPsychological Methods
Issue number3
StatePublished - Sep 2006


  • Coefficient alpha
  • Meta-analysis
  • Reliability
  • Reliability generalization
  • Sampling distribution


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