A paired-samples t-test is an appropriate test for comparing the scores of two ____________ drawn from related populations
A) interval variables
B) observed frequencies
C) sample means
D) sample standard deviations

Question

Quizplus · Accepted Answer

A paired-samples t-test is used to compare the mean scores of two groups that are related or have some sort of dependency between them. The scores are usually measured on an interval scale, so choice A is the most appropriate option. Observed frequencies, sample means, and sample standard deviations are not the types of variables compared in a paired-samples t-test.

A Paired-Samples T-Test Is an Appropriate Test for Comparing the Scores