Question

Place the four steps for computing the correlation coefficient into the correct order: 1. Add up the cross-products of the Z scores. 2. Change all scores to Z scores. 3. Divide by the number of people in the study. 4. Figure the cross-product of the Z scores for each person.

A.2, 1, 4, 3

B.4, 3, 1, 2

C.2, 4, 1, 3

D.1, 2, 3, 4

Answer 1

Solution: The correct order is:

2. Change all scores to Z-scores

4. Figure the cross-product of the Z-scores for each person.

1. Add up the cross-products of the Z scores.

3. Divide by the number of people in the study.

Therefore, the correct option is C. 2, 4, 1, 3