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

被引:15
|
作者
Rotondi, Michael A. [1 ]
Donner, Allan [1 ,2 ]
机构
[1] Univ Western Ontario, Dept Epidemiol & Biostat, London, ON N6A 3K7, Canada
[2] Univ Western Ontario, Robarts Res Inst, London, ON N6A 3K7, Canada
关键词
empirical bayes; sample size estimation; school randomized trials; intraclass correlation coefficient; INTRACLASS CORRELATION;
D O I
10.3102/1076998609332756
中图分类号
G40 [教育学];
学科分类号
040101 ; 120403 ;
摘要
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.
引用
收藏
页码:229 / 237
页数:9
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