The appropriate correlation coefficient for measuring the direction and strength of the linear relationship between two ranked or ordinal variables is
A)the Spearman correlation coefficient
B)the point-biserial correlation coefficient
C)the phi correlation coefficient
D)none of the above

Question

Quizplus · Accepted Answer

The Spearman correlation coefficient is appropriate for measuring the direction and strength of the linear relationship between two ranked or ordinal variables. This coefficient uses ranks instead of actual values and is therefore applicable when the exact numerical value of the variable is not important, but its position relative to the other variable is.

The Appropriate Correlation Coefficient for Measuring the Direction and Strength