A criterion-related validity of 0.50 indicates that approximately ______ percent of the variability of performance can be accounted for by the test scores.
A) 99.5
B) 50
C) 25
D) 10

Question

Quizplus · Accepted Answer

25Criterion-related validity is assessed by correlating a test score with a performance measure; the square of this correlation (r^2) represents the proportion of variance in the performance measure that can be explained by the test score. A validity of 0.50 squared equals 0.25, or 25 percent of the variability in performance accounted for by the test scores.

A Criterion-Related Validity of 0