One employs a correlated groups design _________.
A) to eliminate random error
B) to simplify calculations
C) for prediction
D) to reduce the effects of individual differences among subjects

Question

Quizplus · Accepted Answer

A correlated groups design is used to reduce the effects of individual differences among subjects by comparing each subject to themselves rather than to other subjects. This helps to control for extraneous variables that may vary between individuals and may influence the outcome of the study. It is not used to eliminate random error, simplify calculations or for prediction.

One Employs a Correlated Groups Design _________