What is the primary purpose of random assignment?

A) to ensure that experimental and control groups start out with the same number
Of participants
B) to ensure that experimental and control groups start out with different numbers
Of participants
C) to ensure that experimental and control groups start out identical to each other
D) to ensure that experimental and control groups will end up different from each other

Question

Cindy Fenteng · Accepted Answer

Final Answer : C, Explanation :  The primary purpose of random assignment is to ensure that experimental and control groups start out identical to each other, minimizing potential confounding variables.

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