The process by which items are placed on a scale in order of relative difficulty in computer-adaptive testing is based on
A) item response theory.
B) generalizability theory.
C) classical test theory.
D) grounded theory.

Question

Quizplus · Accepted Answer

Item response theory (IRT) is the basis for placing items on a scale in order of relative difficulty in computer-adaptive testing. IRT focuses on the relationship between the latent trait being measured (e.g., ability or proficiency) and the probability of giving a correct answer to items of varying difficulty levels. This allows for the creation of tests that adapt to the test-taker's ability level by selecting items that are neither too easy nor too difficult based on their responses to previous items.

The Process by Which Items Are Placed on a Scale