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control group vs. experimental group
[ kuhn-trohl-groop ]
noun
- (in an experiment or clinical trial) a group of subjects closely resembling the treatment group in many demographic variables but not receiving the active medication or factor under study and thereby serving as a comparison group when treatment results are evaluated.
noun
- (in an experiment or clinical trial) a group of subjects who are exposed to the variable under study: a lower infection rate in the experimental group that received the vaccine.