Sample size requirements for estimating intraclass correlations with desired precision

Authors

  • Douglas G. Bonett

    Corresponding author
    1. Department of Statistics, Iowa State University, Snedecor Hall, Ames, IA 50011-1210, U.S.A.
    • Department of Statistics, Iowa State University, Snedecor Hall, Ames, IA 50011-1210, U.S.A.
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Abstract

A method is developed to calculate the approximate number of subjects required to obtain an exact confidence interval of desired width for certain types of intraclass correlations in one-way and two-way ANOVA models. The sample size approximation is shown to be very accurate. Copyright © 2002 John Wiley & Sons, Ltd.

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