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All Journal Journal of Innovative Physics Education Research
Tresna Galih Sukma Suryana
Universitas Sultan Ageng Tirtayasa
Astronomy Earth & Planetary Sciences Education Physics

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Development and Limited Test of Kinematics Conception Diagnostic Instrument: A Rasch Model Analysis Approach Hana Apriliana; Aden Yusril Sasmita; Ilham Mustaqim; Rika Rahmawati; Tresna Galih Sukma Suryana
Journal of Innovative Physics Education Research Vol. 1 No. 1 (2025): Journal of Innovative Physics Education Research (April)
Publisher : CV. Dharma Samakta Edukhatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61142/jiper.v1i1.194

Abstract

This study aims to identify and analyze misconceptions experienced by students on kinematics material. The approach used is quantitative, with a two-level diagnostic test method consisting of 10 multiple choice questions designed to detect misconceptions, involving 30 students of class XI MIPA at SMAN 4 Serang City. The research process included instrument development, expert validity test, limited trial, and data analysis. The question testing design used the Rasch Model Analysis method. Overall, this diagnostic test instrument showed good validity. The analysis results showed that the item reliability value reached 0.89, which indicated that the quality of the items was good. The findings of the data analysis show that students experience misconceptions caused by misunderstanding the concept of kinematics. Based on the results of this study, it is recommended that more effective learning strategies, such as the use of visual media and hands-on practicum, be applied to improve students' understanding of the concept of kinematics. In addition, training for teachers is also needed to improve their ability to identify and overcome misconceptions experienced by students.
Development and Validation of Diagnostic Instrument to Identify Student Misconceptions in Vector Material Arrafikar Rizqia Firdaus; Elza Wulandarie; Mira Cantika; Tresna Galih Sukma Suryana
Journal of Innovative Physics Education Research Vol. 1 No. 1 (2025): Journal of Innovative Physics Education Research (April)
Publisher : CV. Dharma Samakta Edukhatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61142/jiper.v1i1.195

Abstract

This study aims to develop and validate a web-based diagnostic instrument to detect students' misconceptions on vector material, including the concepts of vector magnitude, vector components, resultant, and vector displacement. The research was conducted using a quantitative research design, involving 30 students of class XI IPA 3 SMA Negeri 1 Padarincang. The research process includes instrument development, expert validation, limited trial, and data analysis. The results showed that the instrument had adequate reliability and validity, with KR-20 reliability of 0.848 (high category). The instrument is effective in identifying misconceptions, especially on the concepts of resultant and vector displacement. This article contributes to the development of diagnostic-based physics learning evaluation.
Co-Authors Aden Yusril Sasmita Arrafikar Rizqia Firdaus Elza Wulandarie Hana Apriliana Ilham Mustaqim Mira Cantika Rika Rahmawati