Differences in intercepts for different groups on a test could reflect
A) differences in test validity
B) bias toward one of the groups since scores reflect systematic differences in criterion scores
C) differences in means on a test but not in criterion measures
D) differential prediction

Question

Quizplus · Accepted Answer

Differences in intercepts indicate differences in the mean scores on a test between different groups, but do not necessarily reflect differences in criterion measures. Differences in test validity (A) would result in differences in slope, whereas bias (B) would result in systematic differences in scores that are not reflected in criterion measures. Differential prediction (D) refers to differences in the accuracy of predicting criterion scores for different groups.

Differences in Intercepts for Different Groups on a Test Could