How is the proportion of variance accounted for calculated?
A)It is the same as the point-biserial correlation coefficient.
B)It is the square root of the point-biserial correlation coefficient.
C)It is the squared point-biserial correlation coefficient.
D)It is the slope and intercept of the regression line.

Question

Quizplus · Accepted Answer

The proportion of variance accounted for is calculated by squaring the correlation coefficient, including the point-biserial correlation coefficient. This squared value represents the amount of variance in one variable that is explained by its relationship with another variable.

How Is the Proportion of Variance Accounted for Calculated