The t test for correlated groups uses both the magnitude and direction of the difference scores.

Question

Quizplus · Accepted Answer

The t test for correlated groups, also known as the paired samples t-test, calculates the difference between two related variables for each individual and then examines the distribution of these differences to determine whether they are significantly different from zero. Therefore, both the magnitude and direction of the difference scores are taken into account when conducting this test.

The T Test for Correlated Groups Uses Both the Magnitude