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Testing the Equality of Dependent Intraclass Correlation Coefficients

Allan Donner and Guangyong Zou
Journal of the Royal Statistical Society. Series D (The Statistician)
Vol. 51, No. 3 (2002), pp. 367-379
Published by: Wiley for the Royal Statistical Society
Stable URL: http://www.jstor.org/stable/3650280
Page Count: 13
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Testing the Equality of Dependent Intraclass Correlation Coefficients
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Abstract

Procedures for testing the equality of two dependent intraclass correlation coefficients 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.

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