Random allocation of subjects to groups
A) Insures that the groups will be equal before the experimental manipulation
B) Improves experimental reliability
C) Occurs in a within-subjects design
D) Interferes with a comparison between the experimental and the control group

Question

Quizplus · Accepted Answer

Random allocation of subjects to groups helps to ensure that the groups will be equivalent before any experimental manipulation is introduced, thus reducing potential confounding variables and improving the internal validity of the study.

Random Allocation of Subjects to Groups