If Pearson r is calculated for data that are curvilinearly related, it will
A) properly reflect the degree of association
B) overestimate the degree of association
C) underestimate the degree of association
D) overestimate or underestimate the degree of association, depending on the circumstances

Question

Quizplus · Accepted Answer

Pearson r measures linear relationships, so it will underestimate the degree of association for curvilinear relationships, as it cannot capture the true nature of the curve.

If Pearson R Is Calculated for Data That Are Curvilinearly