Measuring students’ conceptual understanding of real functions: A Rasch model analysis
Anela Hrnjičić 1 * , Adis Alihodžić 1
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1 Department of Mathematics, Faculty of Science, University of Sarajevo, Sarajevo, BOSNIA & HERZEGOVINA* Corresponding Author


Understanding the concepts related to real function is essential in learning mathematics. To determine how students understand these concepts, it is necessary to have an appropriate measurement tool. In this paper, we have created a web application using 32 items from conceptual understanding of real functions (CURF) item bank. We conducted a psychometric analysis using Rasch model on 207 first-year students. The analysis showed that CURF is a dependable and valid instrument for measuring students’ CURF. The test is uni-dimensional; all items are consistent with the construct and have excellent item fit statistics. The results indicate that the items are independent of each other and unbiased towards the gender and high school background of the students.


This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Research Article

INT ELECT J MATH ED, 2024, Volume 19, Issue 1, Article No: em0761

Publication date: 01 Jan 2024

Online publication date: 28 Nov 2023

Article Views: 642

Article Downloads: 312

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