The pre-test scores for a repeated measures test were 6, 8, 10, and 9. The post-test scores for the same participants in the same order were 8, 10, 11, and 12. What would be point estimate be for μ_D? A) -1.75 B) +1.75 C) +2.00 D) -2.00

Question

Quizplus · Accepted Answer

To calculate μ_D, we need to first calculate the differences between post-test and pre-test scores for each participant, and then take the mean of those differences. Participant 1: 8-6 = 2 Participant 2: 10-8 = 2 Participant 3: 11-10 = 1 Participant 4: 12-9 = 3 Mean difference: (2+2+1+3)/4 = 2 Therefore, the point estimate for μ_D is +2.00.

The Pre-Test Scores for a Repeated Measures Test Were 6