The Pearson correlation coefficient (r)provides information about the ______.
A)degree of a linear relationship between two variables
B)magnitude of the difference between two group means
C)curvilinear effects of a predictor variable on a criterion variable
D)degree of range restriction in your data

Question

Quizplus · Accepted Answer

The Pearson correlation coefficient (r) provides information about the degree/strength of a linear relationship between two variables. It ranges from -1 to +1, where -1 represents a perfect negative linear relationship, 0 represents no linear relationship, and +1 represents a perfect positive linear relationship. It does not provide information about the magnitude of differences between two group means or about curvilinear effects of a predictor variable on a criterion variable. It may be affected by range restriction in the data, but it does not provide information about it.

The Pearson Correlation Coefficient (R)provides Information About the ______