Categories English Mango stated that IRT and CRT enable to predict the outcomes of psychological tests by identifying parameters of Post author By esimpk Post date December 9, 2021 A: Item difficulty B: Ability of test takers C: Both A and B D: None ← Generally psychometic techniques are used to determine the → The central model of the classical test theory is that observed test scores are to be composed of a true score and an arror score which are