In Assessing the Relationship Between Variable X and Variable Y

Multiple Choice

In assessing the relationship between variable X and variable Y, the squared value of the correlation coefficient (r²) is sometimes reported. This value represents:

A) the degree of variability in variable X.
B) the degree of variability in variable Y.
C) the effect size of the variables.
D) the percent of variability in Y that can be accounted for by X.