Randomised controlled trials

Participants are randomly grouped into an ‘experimental’ group and a ‘control’ group. The experimental group receive the intervention or activity which is predicted to have an effect on behaviour while the control group does not. Sometimes there is also an ‘active control’ group which receives an intervention or activity which is not related to the study’s focus (to check whether behaviour changes in the experimental group only result from trying something new). Comparisons are then made between the groups to see whether there are changes in behaviour which could be explained by the different group interventions or activities.

Synonyms:
RCT, RCTs
Posted on March 5, 2018 by modsu in . Comments Off on Randomised controlled trials