Multiple Choice
Which procedure is suitable for random assignment to groups?
A) Assigning subjects in the order they arrive, so that one group is filled before the next is started
B) Letting subjects express a preference and then assigning them to a non-preferred group
C) Flipping a coin assigning subjects to the control group and to the experimental group.
D) Asking each subject to secretly decide which group they want to be in
Correct Answer:
Verified
Correct Answer:
Verified
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