Would you volunteer to become vegetarian for the next three decades for the sake of science? What if you were asked to run at least 50 kilometres per week, or live through a natural disaster? Granted, ...

The video below shows how a randomised trial works. It is about 2 minutes long. Randomised trials have at least 2 different treatment groups. The people taking part are put into one of the groups at ...

A cluster randomised trial (CRT) is a randomised controlled trial in which pre-existing groups, called clusters, of individuals are randomly allocated to treatment arms. For example, clusters may be ...