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Question
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
Answer
This answer is hidden. It contains 2 characters.
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