The Spearman rank-order correlation is used when:
A) dependent variables are scaled on a ratio scale.
B) one variable being measured is on an interval scale and the other being measured is on a nominal scale.
C) both of the variables being correlated are measured on a dichotomous scale.
D) one wants to determine whether the relationship between variables is monotonic.

Question

Quizplus · Accepted Answer

The Spearman rank-order correlation is used to assess the strength and direction of the association between two ranked variables, particularly when the relationship is monotonic but not necessarily linear.

The Spearman Rank-Order Correlation Is Used When