A perfect Spearman correlation of +1 or −1 between two variables indicates
A) a perfect linear relationship between the two variables
B) a perfect monotone function of the two variables.
C) the Pearson correlation is 1
D) the Pearson correlation is +1 or -1
E) the two variables are not related.

Question

Quizplus · Accepted Answer

A perfect Spearman correlation of +1 or -1 indicates a perfect monotone relationship, meaning as one variable increases, the other variable either consistently increases or decreases, but not necessarily in a linear fashion.

A Perfect Spearman Correlation of +1 or −1 Between Two