When is it appropriate to use the paired difference t-test?
A) Four samples are compared at once
B) Any two samples are compared
C) Two independent samples are compared
D) Two dependent samples are compared
E) None of these statements is correct

Question

Quizplus · Accepted Answer

The paired difference t-test is used when comparing two dependent samples, such as measurements taken from the same subjects at two different times.

When Is It Appropriate to Use the Paired Difference T-Test