We calculate the proportion of variance accounted for because it is the statistical basis for evaluating
A)the usefulness of a relationship.
B)the strength of the correlation coefficient.
C)the linearity of the two scores.
D)the average deviation among the Y scores.

Question

Quizplus · Accepted Answer

The proportion of variance accounted for is used to evaluate the usefulness of a relationship between two variables. It tells us how much of the variation in one variable (Y) is explained by the variation in the other variable (X). This is important for determining whether the relationship has practical significance or not.

We Calculate the Proportion of Variance Accounted for Because It