The nurse is enrolling subjects for a clinical drug trial in which subjects will be randomly assigned to either a treatment or a placebo group.The pills in both groups will be in identical packaging with identical appearance.This is an example of which type of study?

Question

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In a double-blind study,neither the subject nor the health care provider knows which group the subjects are in.Since there is no difference in the appearance or packaging of the pills,the health care providers will not be aware of which subjects receive the experimental drug and which ones receive the placebo.

The Nurse Is Enrolling Subjects for a Clinical Drug Trial