What is the range of possible values of Pearson's product-moment correlation coefficient?
A)-0.01 to 0.01
B)-1.0 to 1.0
C)-2.0 to 2.0
D)-3.0 to 3.0

Question

Quizplus · Accepted Answer

Pearson's product-moment correlation coefficient, r, ranges from -1 to 1, where -1 indicates a perfect negative correlation, 0 indicates no correlation, and 1 indicates a perfect positive correlation. Therefore, the only valid option is (B) -1.0 to 1.0.

What Is the Range of Possible Values of Pearson's Product-Moment