Greener Journal of Social Sciences Vol. 3 (7), pp. 378-382, August 2013
ISSN: 2276-7800 © 2011 Greener Journals
Manuscript Number: 062513691
Item Response Theory as a Basis for Measuring Latent Trait of Interest
Adebule Samuel Olufemi
Faculty of Education, Ekiti State University, Ado-Ekiti, Nigeria.
Email: doctorolufemiadebule @ yahoo.com
Item Response Theory (IRT) is one of the most important developments in testing today. It then becomes necessary for all experts in tests, measurement, assessment and evaluation to be well-abreasted of this approach that builds on the concept of item analysis. This write up examines item response theory framework, its merits and demerits; and concludes that Nigerian psychometricians need and require skills and experience in the principle and assumption of IRT.
Keywords: Item, tests, item response test, classical test theory, latent trait, item characteristic curve, Rasch model.
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