When calculating a dependent-samples t test,the order in which you input the posttest score and pretest score can change the t value.If you input the pretest first,the obtained value will be ______.
A)positive
B)negative
C)neutral
D)invalid

Question

Quizplus · Accepted Answer

The sign of the t statistic in a dependent-samples t test depends on which scores are subtracted from the other. If the posttest score is subtracted from the pretest score, the resulting t value will be negative, indicating that the pretest score was significantly greater than the posttest score. If the pretest score is subtracted from the posttest score, the resulting t value will be positive, indicating that the posttest score was significantly greater than the pretest score. Therefore, choice B is the correct answer.

When Calculating a Dependent-Samples T Test,the Order in Which You