Latent trait models differ from classical test theory (CTT)in many key ways including the fact that
A) in CTT, no assumptions are made about the frequency distribution of test scores.
B) latent trait models do not presume that test items can carry with them different "weight."
C) latent trait models typically provide for follow-up studies to support the existence of the presumed trait.
D) All of these

Question

Quizplus · Accepted Answer

Latent trait models, unlike classical test theory (CTT), make specific assumptions about the underlying distribution of traits in the population, which is a key difference. CTT assumes that test scores are normally distributed and does not make assumptions about the distribution of traits. Latent trait models do assume that items can have different weights or difficulties, and while they may support follow-up studies, this is not a distinguishing feature from CTT.

Latent Trait Models Differ from Classical Test Theory (CTT)in Many