If there are 16 subjects in a repeated measures design then the sum of the unsigned ranks equals _________.
A) 136
B) 68
C) 272
D) 32

Question

Quizplus · Accepted Answer

In a repeated measures design with 16 subjects, the ranks assigned to the differences (assuming no ties) would be from 1 to 16. The sum of the first 16 positive integers is calculated using the formula n(n + 1)/2, where n = 16. Thus, the sum is 16(16 + 1)/2 = 136.

If There Are 16 Subjects in a Repeated Measures Design