Sample Size Estimation in Cluster Randomized Educational Trials: An Empirical Bayes Approach

Michael A. Rotondi and Allan Donner

Journal of Educational and Behavioral Statistics, 2009, vol. 34, issue 2, 229-237

Abstract: The educational field has now accumulated an extensive literature reporting on values of the intraclass correlation coefficient, a parameter essential to determining the required size of a planned cluster randomized trial. We propose here a simple simulation-based approach including all relevant information that can facilitate this task. An example and corresponding computer code is attached.

Keywords: empirical bayes; sample size estimation; school randomized trials; intraclass correlation coefficient (search for similar items in EconPapers)
Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:sae:jedbes:v:34:y:2009:i:2:p:229-237

DOI: 10.3102/1076998609332756

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