Item response theory : an introduction to latent trait models to test and item

Testing in educational system perform a number of functions, the results from a test can be used to make a number of decisions in education. It is therefore well accepted in the education literature that, testing is an important element of education. To effectively utilize the tests in educational p...

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Main Authors: Talib, Rohaya, Bichi, Ado Abdu
Format: Article
Published: International Journal of Evaluation and Research in Education (IJERE) 2018
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author Talib, Rohaya
Bichi, Ado Abdu
author_facet Talib, Rohaya
Bichi, Ado Abdu
author_sort Talib, Rohaya
collection ePrints
description Testing in educational system perform a number of functions, the results from a test can be used to make a number of decisions in education. It is therefore well accepted in the education literature that, testing is an important element of education. To effectively utilize the tests in educational policies and quality assurance its validity and reliability estimates are necessary. There are two generally acceptable frameworks used in evaluating the quality of test in educational and psychological measurements, these are; Classical Test Theory (CTT) and Item Response Theory (IRT). The estimates of test items validity and reliability depend on a particular measurement model used. It is vital for a test developer to be familiar with the different test development and item analysis methods in order to facilitate the development of a new test. The CTT is a traditional approach which was widely criticise in the measurement community for its shortcomings such as sample dependency of coefficient measures and estimates of measurement error. However, the IRT is a modern approach which provides solutions to most of the CTT"s identified shortcomings. This paper therefore, provides a comprehensive overview of the IRT and its procedures as applied to test item development and analysis. The paper concludes with some suggestions for test developers and test specialists at all levels to adopt IRT for its identified crucial theoretical and empirical gains over CTT. IRT based parameter estimates should be superior and reliable than CTT based parameter estimates. With these features, IRT can help resolve the problems associated with test design based on CTT Keyword: Classical Test Theory Item Response Theory Reliability Validity.
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spelling utm.eprints-822632019-11-19T06:48:55Z http://eprints.utm.my/82263/ Item response theory : an introduction to latent trait models to test and item Talib, Rohaya Bichi, Ado Abdu LB Theory and practice of education Testing in educational system perform a number of functions, the results from a test can be used to make a number of decisions in education. It is therefore well accepted in the education literature that, testing is an important element of education. To effectively utilize the tests in educational policies and quality assurance its validity and reliability estimates are necessary. There are two generally acceptable frameworks used in evaluating the quality of test in educational and psychological measurements, these are; Classical Test Theory (CTT) and Item Response Theory (IRT). The estimates of test items validity and reliability depend on a particular measurement model used. It is vital for a test developer to be familiar with the different test development and item analysis methods in order to facilitate the development of a new test. The CTT is a traditional approach which was widely criticise in the measurement community for its shortcomings such as sample dependency of coefficient measures and estimates of measurement error. However, the IRT is a modern approach which provides solutions to most of the CTT"s identified shortcomings. This paper therefore, provides a comprehensive overview of the IRT and its procedures as applied to test item development and analysis. The paper concludes with some suggestions for test developers and test specialists at all levels to adopt IRT for its identified crucial theoretical and empirical gains over CTT. IRT based parameter estimates should be superior and reliable than CTT based parameter estimates. With these features, IRT can help resolve the problems associated with test design based on CTT Keyword: Classical Test Theory Item Response Theory Reliability Validity. International Journal of Evaluation and Research in Education (IJERE) 2018 Article PeerReviewed Talib, Rohaya and Bichi, Ado Abdu (2018) Item response theory : an introduction to latent trait models to test and item. International Journal of Evaluation and Research in Education (IJERE), 2 (7). pp. 142-151. ISSN 2252-8822 http://dx.doi.org/10.11591/ ijere.v7.i2.pp142-151 DOI: 10.11591/ ijere.v7.i2.pp142-151
spellingShingle LB Theory and practice of education
Talib, Rohaya
Bichi, Ado Abdu
Item response theory : an introduction to latent trait models to test and item
title Item response theory : an introduction to latent trait models to test and item
title_full Item response theory : an introduction to latent trait models to test and item
title_fullStr Item response theory : an introduction to latent trait models to test and item
title_full_unstemmed Item response theory : an introduction to latent trait models to test and item
title_short Item response theory : an introduction to latent trait models to test and item
title_sort item response theory an introduction to latent trait models to test and item
topic LB Theory and practice of education
work_keys_str_mv AT talibrohaya itemresponsetheoryanintroductiontolatenttraitmodelstotestanditem
AT bichiadoabdu itemresponsetheoryanintroductiontolatenttraitmodelstotestanditem