Kamal is assigned to a group in an experiment examining the effectiveness of zinc on diminishing the symptoms of a cold. He didn't know it, but the capsule he received didn't contain any zinc in it. In fact, it was just a sugar pill. The other group of subjects received the true zinc supplements, and researchers compared the number of days subjects felt cold symptoms. Kamal was assigned to which group in the experiment?
A) primary
B) experimental
C) control
D) blocking

Question

Quizplus · Accepted Answer

Kamal was given a placebo (sugar pill), which is typically given to the control group in an experiment. The control group receives a treatment that is not expected to have any effect, in order to compare the experimental group's results to those who did not receive the treatment. Therefore, Kamal was assigned to the control group.

Kamal Is Assigned to a Group in an Experiment Examining