intervention study

views updated May 29 2018

intervention study (inter-ven-shŏn) n. a comparison of the outcome between two or more groups of patients that are deliberately subjected to different regimes to test a hypothesis (usually of treatment but sometimes of a preventive measure, such as vaccination). See blind trial, controlled trial, cross-over trial, double-blind trial.

intervention study

views updated May 23 2018

intervention study Comparison of an outcome (e.g. morbidity or mortality) between two groups of people deliberately subjected to different dietary or drug regimes.