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All Journal SJME (Supremum Journal of Mathematics Education)
Riza Dwi Lutfiyana
Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta, Indonesia
Education Mathematics

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Evaluation of the Difficulty of Self-Efficacy Items in Mathematics Learning Using Rasch Model Analysis Ayu Faradillah; Riza Dwi Lutfiyana
SJME (Supremum Journal of Mathematics Education) Vol 9 No 2 (2025): Supremum Journal of Mahematics Education
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/sjme.v9i2.200

Abstract

Self-efficacy in learning mathematics is very important because it can help in completing tasks well. The objectives of this study were (1) evaluate the level of difficulty of items in the self-efficacy instrument used in mathematics learning; (2) identify items that were too easy or too difficult; (3) identify items that did not fit the Rasch model; and (4) provide recommendations for improving or developing a more accurate instrument. This study employed a quantitative method with a survey approach. Data were collected from 863 respondents using a self-efficacy questionnaire that was adapted and tested for validity and reliability using the Rasch model. Demographic analysis shows that senior students more often experience low self-efficacy (19,5%). Age also plays a role, with the 19–28 age group having stronger self-efficacy. Gender differences were also observed, with men generally having better self-efficacy than women. In conclusion, demographic characteristics influence students' self-efficacy levels. The implications of this study are the importance of tailored approaches based on educational level, age, and gender in efforts to improve students' self-efficacy in mathematics.
Co-Authors Ayu Faradillah