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date: 23 September 2023

Randomized Controlled Trial (RCT) 

Source:
A Dictionary of Epidemiology
Author(s):

Miquel Porta

A clinical-epidemiological experiment in which subjects are randomly allocated into groups, usually called test and control groups, to receive or not to receive a preventive or a therapeutic procedure or intervention. The results are assessed by comparison of rates of disease, death, recovery, or other appropriate outcome in the study groups. RCTs are generally regarded as the most scientifically rigorous method of hypothesis testing available in epidemiology and medicine. Nonetheless, they may suffer lack of ... ...

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