The test statistic for a related-samples t test makes tests concerning a single sample of
A) raw scores.
B) difference scores.
C) participant scores.
D) original data.

Question

Quizplus · Accepted Answer

A related-samples t test compares the means of two related groups or conditions, and the test statistic is based on the difference scores between the two conditions for each participant. Therefore, the correct choice is B, which refers to the difference scores.

The Test Statistic for a Related-Samples T Test Makes Tests