If 15 participants take a pretest and a posttest and have a mean difference score of 1.5,and if the standard deviation of the comparison distribution is 0.5,the t score is A)0.5 / 1.5 = 0.33 B)1.5 / 15 = 0.10 C)1.5 / 0.5 = 3 D)1.5 / 0.5² = 6

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Quizplus · Accepted Answer

The t score is calculated by dividing the mean difference score by the standard deviation of the comparison distribution, which is 1.5 / 0.5 = 3.

If 15 Participants Take a Pretest and a Posttest and Have