You want everyone to have the intervention? You don’t need a stepped wedge trial for that
On a pervasive misconception: that we do a stepped wedge trial because we want all of the sites in the trial to end up getting the intervention.
Blog-posts
Is a stepped wedge trial really a randomised controlled trial?
If stepped wedge trials rely so much on clusters acting as “their own controls”, doesn’t this amount to a (non-randomised) before-and-after study design?
Reasons for doing a stepped wedge trial
Why would you choose a stepped wedge design in particular in a given situation, in place of something … I dont know … simpler?
Three kinds of stepped wedge trial
Stepped wedge trials vary widely in design, but since I can’t resist a typology this post describes three common types of stepped wedge trial.
The Gambia Hepatitis Intervention Study
The first ever stepped wedge trial is also the longest running. This post tells the story of the Gambia Hepatitis Intervention Study.
What is a stepped wedge trial?
A beginner’s guide to stepped wedge trials, their rapid rise, and some of the myths and confusions that continue to surround them.
What is a randomised controlled trial?
Randomised controlled trials have had a huge impact on the delivery of health services. But what are they and what makes them so important?