Udoudoh, Juliana Francis and Umoobong, MfonObong PhD
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 PhD
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.