The fact that cultural factors may be operating to weaken an item's ability to discriminate between groups is evident from:
A) Lord's treatise entitled Item Response Theory.
B) an item characteristic curve.
C) an information function.
D) Georg Rasch's unauthorized biography, You Can Never Be Too Rich or Too "Rasch."

Question

Quizplus · Accepted Answer

An information function is a graphical representation of the amount of information that an item provides about a person's ability. It can be used to identify items that are not discriminating well between groups.

The Fact That Cultural Factors May Be Operating to Weaken