Under what circumstances is the point-biserial correlation used?
A)in the same circumstances when a repeated-measures t test would be used
B)in the same circumstances when an independent-measures t test would be used
C)when both X and Y are dichotomous variables
D)when both X and Y are measured on an ordinal scale (ranks)

Question

Quizplus · Accepted Answer

The point-biserial correlation is used when one variable is dichotomous (binary) and the other is continuous, similar to the conditions for an independent-measures t test.

Under What Circumstances Is the Point-Biserial Correlation Used