ITEM RESPONSE THEORY (IRT)

a probability theory of measurement stating that the correct answer to an item is a function of an underlying trait or ability that is not directly observable meaning a latent trait.

ITEM RESPONSE THEORY (IRT): "Item Response Theory (IRT) model differs in terms of the number of parameters contained in the model."
Cite this page: N., Pam M.S., "ITEM RESPONSE THEORY (IRT)," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/item-response-theory-irt/ (accessed December 12, 2019).
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