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Testing the equality of dependent intraclass correlation coefficients

2002; Wiley; Volume: 51; Issue: 3 Linguagem: Inglês

10.1111/1467-9884.00324

2517-6153

Allan Donner, Guangyong Zou,

Statistical Methods and Inference

Summary. Procedures for testing the equality of two dependent intraclass correlation co-efficients computed from the same sample of subjects are developed and evaluated. It is demonstrated that an extended test procedure based on a normalizing and variance stabilizing transformation of the intraclass correlation coefficient developed by Konishi has consistently greater power than a procedure based on Fisher's classical Z-transformation and also has power which is comparable with that of the likelihood ratio test. Two examples are provided.