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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Pendidikan Fisika Indonesia PEMBELAJAR: Jurnal Ilmu Pendidikan, Keguruan, dan Pembelajaran Indonesian Review of Physics (IRiP) Sains dan Matematika Jurnal Pendidikan Progresif
Raden Oktova
Jurusan Pendidikan Fisika Universitas Ahmad Dahlan Yogyakarta Kampus II, Jl. Pramuka 42, Yogyakarta 55161
Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Materials Science & Nanotechnology Mathematics Physics

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PENGUJIAN PARAMETRISASI BARU POTENSIAL WOODS-SAXON DENGAN PERHITUNGAN SPEKTRUM TENAGA KEADAAN DASAR INTI PB208 Oktova, Raden
Sains & Matematika Vol 2, No 1 (2013): Oktober, Sains & Matematika
Publisher : Sains & Matematika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Single-particle and single-hole energy levels in the nucleus Pb208 are calculated using a new parametrization of the Woods-Saxon potential in coordinate space and the Numerov algorithm. The application of the new parameter set proves to be capable of improving the accuracy of the calculation compared to a previous parameter set as measured from the energy standard deviation (relative to the experimental values) only for single-particle levels, but it fails for single-hole levels.
Pengaruh Pengetahuan Awal Terhadap Hasil Belajar Fisika Kelas Unggulan Menggunakan Kuis Terstruktur Ummah, Rakhmatul; Oktova, Raden
PEMBELAJAR: Jurnal Ilmu Pendidikan, Keguruan, dan Pembelajaran Vol 8, No 1 (2024): Volume 8 Nomor 1 April 2024
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/pembelajar.v8i1.23492

Abstract

Pendidik percaya bahwa pengetahuan awal dapat memudahkan siswa mempelajari materi selanjutnya, dan dapat menjadi tolak ukur hasil belajar, penelitian ini bertujuan untuk mengetahui hasil belajar fisika siswa kelas unggulan berdasarkan pengetahuan awal dan hasil belajar menggunakan kuis terstruktur. pengaruh pengetahuan awal terhadap hasil belajar dihitung menggunakan SPSS sehingga diperoleh sumbangan relatif pengetahuan awal terhadap hasil belajar adalah 34,62 %, dengan sumbangan efektif 51%   sehingga disimpulkan bahwa tinggi rendahnya pengetahuan awal dapat mempengaruhi hasil belajar.
Psychometric properties of Indonesian physics motivation questionnaire using Rasch model Sukarelawan, Moh Irma; Ramadhan, Muhammad Firman; Oktova, Raden; Jumadi, Jumadi; Puspitasari, Ariati Dina; Indratno, Toni Kus; Nuryana, Zalik
International Journal of Evaluation and Research in Education (IJERE) Vol 13, No 6: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v13i6.29285

Abstract

The transition to online learning during the pandemic has significantly impacted Indonesian students’ physics learning motivation. Recognizing the need for culturally relevant tools to assess this motivation, this study aims to adapt the physics motivation questionnaire (PMQ) to the Indonesian context. This research, which was conducted on 107 secondary and vocational school students, had a balanced gender distribution and used survey methodology. The PMQ, which was adapted from the biology motivation questionnaire (BMQ) through a rigorous forward-backward translation process, was analyzed for its psychometric properties using the Rasch model. This analysis focuses on the content aspects of construct validity, assessing content relevance, representativeness, and technical quality. The results show that the PMQ, using a 4-point Likert scale, effectively addresses these elements, thus confirming its reliability and applicability in the Indonesian educational environment. This study concludes that the culturally adapted PMQ is a valuable instrument for evaluating Indonesian students’ motivation to study physics, especially in the context of ongoing changes in the educational landscape.
Quality of Four-Tier Diagnostic Test on Wave and Vibration Materials: An Empirical Study Using Rasch Modeling Sukarelawan, Moh. Irma; Indratno, Toni Kus; Oktova, Raden; Abdullah, Nurul Syafiqah Yap
Jurnal Pendidikan Fisika Indonesia Vol 20, No 1 (2024)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v20i1.47493

Abstract

Not all teachers have the ability to develop diagnostic instruments for misconception. Meanwhile, there is an urgent need to diagnose student misconceptions. Therefore, this research aims to carry out the process of adapting misconception-diagnostic instruments to wave and vibration materials. This study used a cross-sectional quantitative survey method. The adaptation process was conducted with 306 state high school students taking wave and vibration classes. Respondents were selected using convenience sampling techniques. 4WADI (Four-tier Wave and vibration Diagnostic Instrument) was translated into Indonesian, consulted with language experts, and assessed by material and evaluation experts to produce an instrument appropriate to the Indonesian cultural context. Before the empirical test was carried out, I-4WADI (Indonesian et al. and vibration Diagnostic Instrument) was tested for readability on 35 students. As a result, the I-4WADI has excellent readability. The validation results of six experts were analyzed using the Aiken V technique. A total of 25 items were used for expert validation. Empirical validation data were analyzed using the Rasch model. Review empirical validation from the aspects of item fit and unidimensionality. The analysis results show that I-4WADI has good quality based on validity and reliability. The infit MnSq values ranged from 0.81 to 1.40, and the outfit MnSq values ranged from 0.71 to 1.36. The instrument reliability value is 0.98. So, I-4WADI can be applied to high school students in Indonesia. These findings have practical implications for teachers who wish to diagnose students' misconceptions about waves and vibration.
Assessing Presentation Skills in STEAM Project-Based Learning: A Longitudinal Analysis Using Rasch Modeling Hidayat, Panji; Oktova, Raden; Sukarelawan, Moh. Irma; Rohman, Fatkhur
Jurnal Pendidikan Progresif Vol 15, No 1 (2025): Jurnal Pendidikan Progresif
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpp.v15i1.pp700-710

Abstract

Assessing Presentation Skills in STEAM Project-Based Learning: A Longitudinal Analysis Using Rasch Modeling. Project presentation is a crucial element in PjBL learning, as it allows students to demonstrate their understanding of the material studied and the ability to convey project ideas and results effectively. Objectives: This study aims to analyse students' presentation performance in teaching using the Project-based Learning approach. Methods: The type of research used is a quasi-experimental design with a time series approach. Respondents involved in this study were 22 prospective elementary school teacher students. The groups assessed were randomly selected using a lottery system. The instrument used to assess group presentation skills consists of 11 items, and each item uses a 5-point Likert rating scale. Presentation performance data was analysed using the Logit Value of Item (LVI) technique combined with the Wright map. Findings: Group presentation performance experienced variations in improvement over time, with some skills showing an increasing trend and others showing a decreasing trend. Conclusion: The implication of this study, in terms of presentation performance, is that although there is variation in the improvement of student presentation skills over time, analysis using Rasch modelling can provide greater insight into the factors that influence presentation quality and help identify areas that require improvement in Project-based Learning teaching. Keywords: logit value of item, presentation skills, rasch model, STEAM, wright map. 
Mapping the Landscape of Technology-Enhanced Misconception Research in Science Education: Trends, Impact, and Future Directions Oktova, Raden; Sukarelawan, Moh. Irma
Indonesian Review of Physics Vol. 8 No. 1 (2025)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v8i1.15336

Abstract

This study uses a quantitative bibliometric approach to map trends, collaborations, and research directions in the field of technology-based misconception remediation in science education. Data were extracted from the Scopus database using keyword searches related to misconceptions, educational technology, and science learning from 2000 to 2024. After filtering, 280 documents were analyzed using VOSviewer to explore publication patterns, author collaboration networks, and conceptual connections through co-authorship, co-word, and co-citation analysis. Network map visualizations provide an overview of key actors, popular topics, and emerging thematic clusters. The study results indicate significant growth in publications and international collaboration, while also identifying potential research gaps. These findings are expected to serve as a strategic reference for researchers and policymakers in directing technology-based pedagogical research and innovation to address misconceptions in science education.
Co-Authors Abdullah, Nurul Syafiqah Yap Ariati Dina Puspitasari, Ariati Dina Budi Arwanto, Budi Fatkhur Rohman Jumadi Jumadi Moh. Irma Sukarelawan Nuryana, Zalik Panji Hidayat Ramadhan, M. Firman Toni Kus Indratno Ummah, Rakhmatul