The null hypothesis in a repeated measures t test is
A) the hypothesis that the mean difference score is equal to 0.
B) the hypothesis that the mean difference score is different from 0 in either direction.
C) the hypothesis that post scores are larger than pre-scores.
D) the hypothesis that the variance of scores stays constant from pretest to posttest.

Question

Quizplus · Accepted Answer

The null hypothesis in a repeated measures t test is that the mean difference score is equal to 0. This means that there is no significant difference between pre-test and post-test scores.

The Null Hypothesis in a Repeated Measures T Test Is