The item characteristic curve can provide a picture of an item's ______.
A) distribution of responses
B) interitem and item-total correlation
C) level of difficulty and discrimination
D) reliability and validity

Question

Quizplus · Accepted Answer

The item characteristic curve (ICC) displays the relationship between the probability of getting an item correct and the level of the trait being measured. This helps to identify the item's level of difficulty and discrimination. It does not provide information about distribution of responses, interitem and item-total correlation, reliability or validity.

The Item Characteristic Curve Can Provide a Picture of an Item's