Which of the following is TRUE of the Pearson r?
A) It has a distribution that approximates the tetrachoric r if the data are not linear.
B) It is legitimately used only when the two variables are linear.
C) Pearson actually had very little to do with its development.
D) It can never be larger than the Spearman rho if the data represent two true dichotomies.

Question

Quizplus · Accepted Answer

The Pearson r is legitimately used only when the two variables are linear. For nonlinear relationships, other correlation coefficients such as the Spearman rho or Kendall tau may be more appropriate.

Which of the Following Is TRUE of the Pearson R