Greener Journal of Social Sciences

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Greener Journal of  Social Sciences Vol. 3 (7), pp. 378-382, August 2013

  ISSN: 2276-7800 © 2011 GJSS

Research Paper

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 @


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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