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Education & Training

Pragmatic and Group-Randomized Trials in Public Health and Medicine

Online Course

Part 3: Sample Size and Power

Considering a trial involving groups or clusters?

Check out NIH's Research Methods Resources website.

Part 3 explores power and sample size for group-randomized trials (GRTs), individually randomized group-treatment (IRGT) trials, and stepped wedge group-randomized trials (SWGRTs). It introduces resources from NIH's Research Methods Resources website that can be used for power and sample size estimation in these designs and provides a brief tutorial for sample size estimation in a parallel GRT.

Recorded in September 2024
Last updated on