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All Journal Pattimura Proceeding : Conference of Science and Technology SJME (Supremum Journal of Mathematics Education)
Lutfiyana, Riza Dwi
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Energy Engineering Materials Science & Nanotechnology Mathematics Physics

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Survey of Rasch Model Analysis of Mathematical Literacy Abilities of Senior High School Students Widyaningrum, Azzahra; Lutfiyana, Riza Dwi; Faradillah, Ayu; Miatun, Asih
Pattimura Proceeding Vol 5 No 1 (2024): Prosiding Konferensi Nasional matematika (KNM) XXII Tahun 2024
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ppcst.knmxxiiv5i1p57-66

Abstract

Mathematical literacy skills are needed in everyday life, but the mathematical literacy skills of students in schools show that Indonesian students are very low in the field of mathematical literacy. Therefore, this study aims to determine the Rasch model analysis survey of mathematical literacy skills of senior high school students. This study uses quantitative research methods with a survey approach and uses the Rasch model as a measurement. The subjects studied were 100 students consisting of grades X and XI of high schools in Bekasi city. Furthermore, the results of this study indicate that there is 1 out of 8 items that are misfit and for the provisional calculation of reliability is 0.42, so it is declared not reliable and for the DIF test results there is only one item that is biased.
Evaluation of the Difficulty of Self-Efficacy Items in Mathematics Learning Using Rasch Model Analysis Faradillah, Ayu; Lutfiyana, Riza Dwi
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 Asih Miatun Faradillah, Ayu Widyaningrum, Azzahra