Examlex
Ethical issues can still occur with randomized controlled trials (RCTs).
Untreated Population
A group in a study or an experiment that does not receive the treatment or intervention being tested.
Significance Level
The threshold in hypothesis testing that determines the probability of rejecting the null hypothesis when it is actually true, often denoted by alpha.
Treatment Group
In experimental research, a group of subjects who receive the treatment or intervention under study.
Placebo Group
A control group in an experiment that receives an inert treatment or substance (placebo) to compare against the effects of the active treatment on the experimental group.
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