A correlation of r = 0.60 exists between a set of X and Y scores. If a constant of 10 is added to each score of both distributions, the value of r will _______.
A) remain the same
B) will increase
C) decrease
D) be less meaningful
E) will increase and be less meaningful

Question

Quizplus · Accepted Answer

The correlation coefficient (r) measures the strength and direction of a linear relationship between two variables. It is not affected by changes in the mean or scale of the variables, such as adding a constant to all scores in both distributions.

A Correlation of R = 0