Test developers calculate an item-validity index to:
A) understand why an item is difficult or easy.
B) reduce the likelihood of an examinee's guessing.
C) maximize the criterion-related validity.
D) determine the internal consistency of the test.

Question

Quizplus · Accepted Answer

An item-validity index is a measure of how well an item discriminates between examinees who know the material and those who do not. It is used to determine the internal consistency of the test, which is a measure of how well the items on the test measure the same construct.

Test Developers Calculate an Item-Validity Index To