Donna is calculating the correlation coefficient between two continuous variables. Which correlation coefficient should Donna use?
A) Product-moment correlation coefficient
B) Spearman rho
C) point-biserial correlation
D) phi coefficient

Question

Quizplus · Accepted Answer

The product-moment correlation coefficient is appropriate for calculating the correlation between two continuous variables. Spearman rho is used when the data is ordinal or when the relationship between the variables is not linear. The point-biserial correlation is used when one variable is dichotomous and the other is continuous. The phi coefficient is used to measure the association between two dichotomous variables.

Donna Is Calculating the Correlation Coefficient Between Two Continuous Variables