Question: The chief function of the control group in an experiment is that it Question 12 options: a) allows mathematical relationships to be established. b) provides

The chief function of the control group in an experiment is that it Question 12 options: a) allows mathematical relationships to be established. b) provides a point of reference against which the behavior of the experimental group can be compared. c) balances the experiment to eliminate all extraneous variables. d) is not really necessary

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