The Pearson correlation coefficient is used.
A)to quantify the relationship between two variables in a one-variable distribution
B)to determine the amount of variability in a set of scores
C)when pairs of scores achieve either interval or ratio measurement
D)to test a null hypothesis about the means in a bivariate distribution

Question

Quizplus · Accepted Answer

The Pearson correlation coefficient is used when pairs of scores achieve either interval or ratio measurement, as it measures the strength and direction of the linear relationship between two continuous variables. It is not used to quantify the relationship between two variables in a one-variable distribution or to determine the amount of variability in a set of scores. And it is not used to test a null hypothesis about the means in a bivariate distribution.

The Pearson Correlation Coefficient Is Used