SOCRA CCRP Practice Exam

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Which is NOT a type of control group used in trials?

Placebo
Parallel
Standard of Care
Historical control

The correct answer is: Parallel

A placebo control group is where participants receive a fake treatment or substance, while a parallel control group is where participants receive a different, but existing treatment or substance. Both standard of care and historical control groups involve comparing the experimental treatment to current or past treatments, respectively. Therefore, they are types of control groups used in trials.