As opposed to reliability based on the classical test theory, ____ focuses on the range of item difficulty that is useful in assessing an individual's ability.
A)domain sampling
B)internal consistency
C)coefficient alpha
D)item response theory

Question

Quizplus · Accepted Answer

Item Response Theory (IRT) focuses on the relationship between an individual's ability and their probability of correctly answering items of varying difficulty, making it useful for assessing a range of item difficulties tailored to individual abilities.

As Opposed to Reliability Based on the Classical Test Theory