Udoudoh, Juliana Francis and Umoobong, MfonObong (2016)
ITEM RESPONSE THEORY: A TOOL FOR EDUCATION MEASUREMENT AND EVALUATION
Test theory comes in two principal ways: Classical Test Theory and Item Response Theory. While CTT makes no assumption about matters that are beyond the control of psychometrician, it test scoring procedures have the advantage of being simple to compute. Though CTT was initially confined to psychological tests, it has other shortcomings. Thus, the introduction of IRT, which is the branch of science, that comprises explanatory statements, acceptable principles and methods of analysis. IRT subsequently became the most important psychometric method of validating scales because it provides a method for resolving many of the measurement challenges that need to be addressed when constructing a test or scale, and widely used in the development and assessment in the field of education. This research identified IRT as the framework and popular development in psychometrics to overcome the shortcomings of CTT, and maximize objectivity in educational measurement and evaluation.
Udoudoh, Juliana Francis and Umoobong, MfonObong (2016)
ITEM RESPONSE THEORY: A TOOL FOR EDUCATION MEASUREMENT AND EVALUATION
Test theory comes in two principal ways: Classical Test Theory and Item Response Theory. While CTT makes no assumption about matters that are beyond the control of psychometrician, it test scoring procedures have the advantage of being simple to compute. Though CTT was initially confined to psychological tests, it has other shortcomings. Thus, the introduction of IRT, which is the branch of science, that comprises explanatory statements, acceptable principles and methods of analysis. IRT subsequently became the most important psychometric method of validating scales because it provides a method for resolving many of the measurement challenges that need to be addressed when constructing a test or scale, and widely used in the development and assessment in the field of education. This research identified IRT as the framework and popular development in psychometrics to overcome the shortcomings of CTT, and maximize objectivity in educational measurement and evaluation.