The Spearman r may be appropriately used whenever
A) both sets of measure are in ordinal form
B) one set of measures is in interval form, and the other in ordinal form
C) both sets of measures are in interval form, but the distributions are badly skewed
D) all of these

Question

Quizplus · Accepted Answer

The Spearman r, or Spearman's rank correlation coefficient, is a non-parametric measure of rank correlation that assesses how well the relationship between two variables can be described using a monotonic function. It can be used in all the scenarios mentioned: when both sets of measures are in ordinal form, when one set is in interval form and the other in ordinal form, and when both sets are in interval form but the distributions are badly skewed. This makes it a versatile tool for analyzing relationships between variables when the data do not meet the assumptions required for Pearson's correlation coefficient.

The Spearman R May Be Appropriately Used Whenever