Publication details

Estimates of item parameters in computer adaptive testing



Year of publication 2013
Type Article in Proceedings
Conference Mendel
MU Faculty or unit

Faculty of Education

Field Informatics
Keywords Benchmarking; Computer adaptive placement test; IRT; Parameter estimate
Description This paper focuses on the problems connected with estimating parameters in a computer adaptive online language test developed at Masaryk University and used as a prerequisite for hundreds of students every semester before their enrolment in seminars of English for Special Purposes or Academic English. A segment estimate of parameters of the item response function is suggested as a solution of the so-called guessing problem. The results are compared with the usual approach, namely applying a three-parameter model.

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