The correlation between a predictor and a criterion is .84.This means that the criterion has about ____ percent of its variance in common with the predictor.
A) 16
B) 42
C) 70
D) 84

Question

Quizplus · Accepted Answer

The correlation coefficient squared (R²) represents the proportion of variance in the criterion that can be predicted by the predictor. In this case, R² = (.84)² = .7056 or approximately 70.56%, so the criterion has about 70% of its variance in common with the predictor. Therefore, the best choice is C.

The Correlation Between a Predictor and a Criterion Is