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All Journal Jurnal Ilmiah Pendidikan Fisika Indonesian Journal of Science and Mathematics Education Science and Physics Education Journal (SPEJ) Natural: Jurnal Ilmiah Pendidikan IPA Jurnal Pendidikan Fisika dan Sains (JPFS) Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Journal Corner of Education, Linguistics, and Literature BIOCHEPHY: Journal of Science Education RETEL Journal: Journal on Publication of The Research on Teaching and Language Tafahus: Jurnal Pengkajian Islam KOLONI Jurnal Pendidikan MIPA Sasambo: Jurnal Abdimas (Journal of Community Service)
Hendri Noperi
Universitas Islam Negeri Raden Intan Lampung
Religion Humanities Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

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Validasi Instrumen Literasi Sains dengan Model Rasch untuk Socio-Scientific Issues Hendri Noperi; Irwandani; Wiliyanti, Vandan; Yanti, Fitri April; Syamsuri, M. Mahfudz Fauzi; Yusandika, Ajo Dian
N A T U R A L: Jurnal Ilmiah Pendidikan IPA Vol 11 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/natural.v11i2.18891

Abstract

This study aims to evaluate the validity and reliability of a science literacy instrument based on the Rasch Model in measuring students' abilities on socio-scientific issues. The analysis was conducted on 20 items using the Winsteps software. The results indicate that the instrument demonstrated good reliability, with an item reliability value of 0.96 and a person reliability value of 0.65. The Wright Map revealed that most items were well-aligned with the respondents’ abilities, although some items fell outside the majority's ability range. The analysis of item difficulty showed adequate variation, with the most difficult item at logit 2.09 and the easiest at logit -2.49. However, the DIF analysis identified bias in item 20M, which exhibited significant differences between male and female groups. These findings highlight the importance of revising specific items to enhance fairness in measurement. This study provides significant contributions to the development of educational assessment instruments based on the Rasch Model, ensuring validity, reliability, and fairness in evaluation. The instrument is expected to serve as an effective tool to support science literacy-based learning across various educational levels.
Digital-Based Physics Pocket Book Design with Short Counting Methods for Junior High School Students Yanti, Fitri April; Kristiawan, Muhammad; Riastuti, Reny Dwi; Muthoharoh, Luluk; Noperi, Hendri
Jurnal Pendidikan MIPA Vol 23, No 3 (2022): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Abstract

This study aims to design a digital-based physics pocket book with a short calculation method for junior high school students. This type of research and development is used in this study. At the design stage, we selected the ADDIE model. The design phase includes: the analysis phase, the stage design, the stage of development. Research data obtained by reviewing the curriculum, interviews, and validation questionnaires. Class VII, VIII, IX students, as many as 9 people, became the subject of a limited trial in this study. Data analysis was carried out by reviewing curriculum content, descriptive interview results, and quantitative analysis for validation. The results showed that the design of a digital-based physics pocket book with a short calculation method was valid and could be used by Junior high school students.Keywords: digital book, pocket book, short count method, physics learning.DOI: http://dx.doi.org/10.23960/jpmipa/v23i3.pp1030-1039
Psychometric analysis of the critical thinking skills instrument in physics learning using the Rasch model Noperi, Hendri; Diani, Rahma; Irwandani, Irwandani; Suryani, Yani; Sodikin, Sodikin; Saputro, Trimo
Indonesian Journal of Science and Mathematics Education Vol. 8 No. 3 (2025): Indonesian Journal of Science and Mathematics Education
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijsme.v8i3.28770

Abstract

Critical thinking is a core competency in physics learning, yet measuring it is constrained by a lack of psychometrically validated instruments. This study aims to develop and analyze a critical thinking assessment instrument on "Work and Simple Machines" for junior high school students. Using a Research and Development (R and D) approach, a 10-item essay instrument was trialed with 175 eighth-grade students and analyzed using the Rasch Model via WINSTEPS. Results indicate construct validity through unidimensionality (variance explained = 39.3%), item fit, and effective rating scale functioning. Reliability was good (student = 0.79; item = 0.84), with adequate separation values. The instrument is considered feasible, valid, and reliable as a diagnostic tool. This research provides educators with an objective tool to map students' weaknesses, enabling targeted pedagogical interventions and effective physics learning strategies.
Development of Diagnostic Instruments for Critical Thinking Skills of Students in Physics Learning on Socio-Scientific Issues (SSI) Wulandari, Dewi Tri; Diani , Rahma; Noperi, Hendri
Journal Corner of Education, Linguistics, and Literature Vol. 5 No. 1 (2025): August
Publisher : CV. Tripe Konsultan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54012/jcell.v5i1.534

Abstract

This study aimed to develop and test the feasibility of a diagnostic instrument for assessing students' critical thinking skills on socio-scientific issues (SSI) in physics education with the topic of global warming. This objective is motivated by the lack of valid, reliable, and contextually appropriate assessment instruments based on Socio-Scientific Issues (SSI) in physics education at the secondary school level, amid the low critical thinking competencies of Indonesian students as indicated by the 2018 PISA survey, and the need for an SSI approach as an effective strategy. The research method employs a research and development (R&D) design using the ADDIE model. The instrument was developed in the form of 20 essay questions based on SSI contexts and its validity was reviewed by experts and tested on 75 students from two high schools in rural and urban areas. Data were analyzed using Rasch modeling with the assistance of WINSTEPS software. Expert validation results showed that the instrument was categorized as “Highly Suitable.” Rasch model analysis confirmed the instrument's unidimensionality (raw variance explained by observed measures: 30.9%). The analysis results showed that all items were deemed fit (Outfit MNSQ: 0.78–1.28; ZSTD:–1.51 to 1.81; and PTMEA Corr: 0.26–0.68). The instrument's reliability is high, with a Cronbach's alpha of 0.81, person reliability of 0.80, and item reliability of 0.91, using a structurally valid rating scale. However, significant DIF based on gender and region was found, indicating the need for further revision to ensure measurement fairness. This instrument is deemed valid and reliable for use as a diagnostic tool for critical thinking skills in SSI-based physics learning.
Co-Authors Agus Suyatna Ajo Dian Yusandika Ayu, Siti Nur Dewi Tri Wulandari, Dewi Tri Diani , Rahma Fitri April Yanti Fitri April Yanti, Fitri April Herlina, Kartini Husnul Fatarib Irwandani Irwandani Irwandani Luluk Muthoharoh M. Anas Thohir M. Mahfudz Fauzi Syamsuri Mega Reta Triyuniar Moh. Irma Sukarelawan Muhammad Kristiawan Muhammad Kristiawan Muthoharoh, Luluk Nonoh Siti Aminah Rahma Diani, Rahma Reny Dwi Riastuti Rizka Pitri Sai'dy Sarwanto Sarwanto Sodikin Sodikin Sulis Anjarwati Trimo Saputro Triyuniar, Mega Reta Vandan Wiliyanti Wahyu Stiawan Wahyu Stiawan Yani Suryani