Practical issues in the design and analysis of stepped wedge cluster randomized trials
The stepped wedge (SW) design is a variation on the cluster randomized trial (CRT) in which all clusters receive both the control and intervention conditions. Clusters begin the trial at the same time, and all participants are assigned to the control condition during this initial phase in the study. At sequential time periods, individual clusters or groups of clusters cross over to the intervention condition based on a randomly assigned cluster order. The SW design is becoming increasingly popular due to its advantages over CRTs when intra-cluster correlation is high, and because it is a useful ...
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Chaussee, Erin Leister
Fairclough, Diane L.; Grunwald, Gary K.
Embargo Expires: 06/22/2021