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

Author

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  • Michael A. Rotondi
  • Allan Donner

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.

Suggested Citation

  • Michael A. Rotondi & Allan Donner, 2009. "Sample Size Estimation in Cluster Randomized Educational Trials: An Empirical Bayes Approach," Journal of Educational and Behavioral Statistics, , vol. 34(2), pages 229-237, June.
  • Handle: RePEc:sae:jedbes:v:34:y:2009:i:2:p:229-237
    DOI: 10.3102/1076998609332756
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    Cited by:

    1. Satoshi Usami, 2017. "Generalized SAMPLE SIZE Determination Formulas for Investigating Contextual Effects by a Three-Level Random Intercept Model," Psychometrika, Springer;The Psychometric Society, vol. 82(1), pages 133-157, March.

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