When the samples we want to compare pair in some natural way, such as a pretest/posttest for each person or husband/wife pairs, a more appropriate form of analysis is to not compare two separate variables, but instead to compare their ____.
A) difference
B) sum
C) ratio
D) total
E) product

Question

Quizplus · Accepted Answer

When comparing paired samples, the appropriate form of analysis is to compare their differences. This allows us to control for individual differences and focus on the change within each pairing.

When the Samples We Want to Compare Pair in Some