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Power Calculations for Binary Moderator in Cluster Randomized Trials
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Spybrook, Jessaca; Kelcey, Ben – Society for Research on Educational Effectiveness, 2014
Cluster randomized trials (CRTs), or studies in which intact groups of individuals are randomly assigned to a condition, are becoming more common in the evaluation of educational programs, policies, and practices. The website for the National Center for Education Evaluation and Regional Assistance (NCEE) reveals they have launched over 30…
Descriptors: Cluster Grouping, Randomized Controlled Trials, Statistical Analysis, Computation