Which one of the following is a characteristic of a good test item--one that should be retained in the final version of the test?
A) low discrimination index
B) item characteristic curves that have very little slope
C) difficulty level of 0.5
D) interitem correlation coefficient near 0

Question

Quizplus · Accepted Answer

A difficulty level of 0.5 means that half of the test-takers are able to correctly answer the question, indicating that the item is appropriately challenging and not too easy or difficult. This is a desirable characteristic for a good test item to have.

Which One of the Following Is a Characteristic of a Good