What is the main drawback of randomization?
A) Randomization increases the risk of carryover effects.
B) The researcher cannot be sure that all extraneous variables have been equally distributed across the groups.
C) It is very difficult to implement this technique.
D) All of the above.

Question

Quizplus · Accepted Answer

Randomization does not guarantee equal distribution of all extraneous variables across groups, which can lead to confounding variables affecting the results.

What Is the Main Drawback of Randomization