Which statistic is modeled after Pearson's r but transforms the scores on both variables to ranks before calculating the measure of association?
A) Cramer's V
B) gamma
C) Somers' d
D) Spearman's correlation

Question

Quizplus · Accepted Answer

Spearman's correlation coefficient is modeled after Pearson's r but converts the actual scores on both variables to ranks before calculating the association. This makes it suitable for measuring the relationship between two variables when the data are ordinal or not normally distributed. In contrast, Cramer's V, gamma, and Somers' d are measures of association for categorical data, with different underlying assumptions and calculation methods.

Which Statistic Is Modeled After Pearson's R but Transforms the Scores