Multiple Choice
Which of the following is a key feature of an experimental design?
A) The same individuals are studied several times over some period of time.
B) Calculation of a correlation is used to evaluate the results.
C) Two or more different cohorts are always used.
D) Participants are randomly assigned to groups.
E) Experiments are always longitudinal.
Correct Answer:
Verified
Correct Answer:
Verified
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