Teorie odpovědí na položku a její aplikace v oblasti Národních srovnávacích zkoušek

Item Response Theory, a psychometric paradigm for test development and evaluation, comprises a collection of models which enable the estimation of the probability of a correct answer to a particular item in the test as a function of the item parameters and the level of a respondent's underlying ability. This paper, written in cooperation with the company Scio, is focused on the application of Item Response Theory in the context of the National Comparative Exams. Its aim is to propose a test-equating procedure which would ensure a fair comparison of respondents' scores in the Test of General Academic Prerequisites regardless of the particular test administration.