Questions about this course?
A 7-part online course to help researchers design and analyze group-randomized trials (GRTs). It includes video presentations, slide sets, suggested reading materials, guided activities, and a list of course references (PDF).
- Part 1: Introduction and Overview
- Part 2: Designing the Trial
- Part 3: Analysis Approaches
- Part 4: Power and Sample Size
- Part 5: Examples
- Part 6: Review of Recent Practices
- Part 7: Alternative Designs
Considering a trial involving groups or clusters?
Check out NIH's Research Methods Resources website.
For more information about GRTs, view these videos from our Methods: Mind the Gap webinar series and Director, Dr. David M. Murray.
- Research Methods Resources for Clinical Trials Involving Groups or Clusters
- Design and Analysis of Individually Randomized Group-Treatment Trials in Public Health
- Stepped Wedge Cluster Randomized Designs for Disease Prevention Research
- Pragmatic Trials Involving Group Randomization or Delivery of Interventions to Groups: GRTs, IRGTs, and SW-GRTs