randomized controlled trial

A trial in which the people taking part are randomly divided into groups. A group (the intervention group) is given the intervention being tested (for example a drug, surgery, or exercise) and compared with a group which does not receive the intervention (the control group).



randomized controlled trial by Selena Ryan-Vig

is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International

UA-49496932-1