ASSESMENT OF THE TEST ITEM QUALITY BY THE METODS OF ITEM RESPONSE THEORY

Abstract

In this article the analysis of the test quality based on one-parameter Rush’s model using information functions is performed.  The analysis was based on advances in Item Response Theory. The purpose of the study was to identify the shortcomings of the test and determine the means to eliminate them. To achieve this goal, an algorithm for constructing information functions of test items and the test for the one-parameter Rush’s model was given. Based on the study of information functions, a methodology for analyzing and improving the quality of test items is proposed. The application of the proposed methodology on the example of computer testing in the discipline "Parallel and distributed computing", which was conducted for 4th year students of the IHE "Academician Yuri Bugay International scientce and technical university", is demonstrated. As result of this demonstration, the non-informative test items were found. Ways to improve the quality of test items were proposed.