What is the mean difference of the following difference scores: -1, -24, +20, -28, -4?
A) -6.40
B) -7.40
C) 6.17
D) 9.25

Name: What is the mean difference of the following difference scores: -1, -24, +20, -28, -4? A) -6.40 B) -7.40 C) 6.17 D) 9.25
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Question

Quizplus · Accepted Answer

To find the mean difference, we need to add up all the differences and then divide by the number of differences.

-1 + (-24) + 20 + (-28) + (-4) = -37

-37 / 5 = -7.40

Therefore, the mean difference is -7.40, which corresponds to answer choice B.

What Is the Mean Difference of the Following Difference Scores