Publication details
Estimates of item parameters in computer adaptive testing
| Authors | |
|---|---|
| Year of publication | 2013 |
| Type | Article in Proceedings |
| Conference | Mendel |
| MU Faculty or unit | |
| Citation | |
| 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. |