If the response curve for item A has a steeper slope than the response curve for item B, then item A has a higher __________ index than item B.
A) characteristic
B) difficulty
C) discrimination
D) distracters uniformity

Question

Quizplus · Accepted Answer

A steeper slope in the response curve indicates that item A does a better job at discriminating between students of different ability levels, hence it has a higher discrimination index.

If the Response Curve for Item a Has a Steeper