In a correlated-groups design, error variability due to individual differences _________, which makes it ________ to find a significant effect.
A) increases; harder
B) increases; easier
C) decreases; harder
D) decreases; easier

Question

Quizplus · Accepted Answer

In a correlated-groups design, individual differences are controlled or reduced, which decreases error variability, making it easier to detect a significant effect.

In a Correlated-Groups Design, Error Variability Due to Individual Differences