Examlex
_____ is the extent to which a test measures what it claims to measure.
Treated Population
A group of individuals who have received a specific treatment or intervention in the context of a study or clinical trial.
Untreated Population
A segment of the population that has not received a particular intervention, treatment, or exposure, used as a comparison group in studies and experiments.
Treatment Group
A group of subjects in an experimental study that receives the treatment or intervention being tested, as opposed to a control group that does not.
Placebo Group
A control group in an experiment that receives a sham or inert treatment, allowing researchers to measure the effect of the actual treatment against no treatment.
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