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Capitalising on covariates in cluster-randomised experiments
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Description: Simulations for assessing the Type-I error rate and statistical power for different ways to conduct and analyse cluster-randomised experiments when a pre-treatment covariate is available.
Summary
In cluster-randomised experiments, participants are randomly assigned to the conditions not on an individual basis but in entire groups. For instance, all pupils in a class are assigned to the same condition. This article reports on a series of simulations that were run to determine how the clusters (e.g., classes) in such experiments should be assigned to the conditions if a relevant cova…
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