The Spearman coefficient of rank correlation is:
A) a measure of correlation used to determine whether several population means are equal.
B) describes the association between sets of ranked data.
C) a measure of correlation based on the sign of a difference between two related observations.
D) is a goodness-of-fit test used to test for normality.

Question

Quizplus · Accepted Answer

The Spearman coefficient of rank correlation is a measure that describes the association between sets of ranked data. It is specifically designed to assess the strength and direction of a monotonic relationship between two variables, regardless of their scales or distributions. It is not used to determine whether population means are equal, nor it is based on the sign of a difference or a goodness-of-fit test.

The Spearman Coefficient of Rank Correlation Is