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All Journal Jurnal Pengajaran MIPA JURNAL FISIKA Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Fibusi (Jurnal Online Fisika) Techno: Jurnal Penelitian Jurnal Spektra JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Penelitian dan Pembelajaran IPA Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Berkala Ilmiah Pendidikan Fisika Al-MARSHAD: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Jurnal Sains Dirgantara DIFFRACTION: Journal for Physics Education and Applied Physics ELFALAKY: Jurnal Ilmu Falak Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika Journal Evaluation in Education (JEE) PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) JURNAL MUARA PENDIDIKAN Jurnal Pemberdayaan Masyarakat Journal of Computers for Society Jurnal Pendidikan MIPA
Judhistira Aria Utama
Universitas Pendidikan Indonesia
Religion Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Using the Rasch Model to Develop a Measure of Students’ Problem Solving Ability in Optical Instruments Vera, Rosi; Kaniawati, Ida; Utama, Judhistira Aria
Jurnal Pendidikan MIPA Vol 24, No 2 (2023): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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

Abstract

This study aims to develop a test instrument for problem-solving abilities in the material of optical instruments. The research method used is the development of a 4D model consisting of defining, designing, developing, and disseminating. Participants in this study consisted of 75 consisting of 40 males and 35 females in grade 12 high school sciences program at a high school in Bandung. Based on the results of the analysis, it was obtained: (1) expert validation with a CVR index value of 1 and the test instrument included in the valid category, (2) construct validation using Rasch was declared valid, (3) the reliability of each item using Rasch analysis was declared reliable with Cronbach alpha of 0.96, and (4) the difficulty level of the items is evenly distributed at each level of difficulty. Therefore, the test instrument that has been developed can measure students' problem-solving abilities in the material of optical instruments. Keywords: pemodelan Rasch, problem solving ability, optical instruments. DOI: http://dx.doi.org/10.23960/jpmipa/v24i2.pp419-431
Evaluating Complex Problem-Solving Test Instrument Quality in Measuring Computational Thinking Skills in Global Warming: Rasch Model Analysis Nurfalah, Farika; Utama, Judhistira Aria; Muslim, Muslim
Jurnal Pemberdayaan Masyarakat Vol 4, No 2 (2025)
Publisher : Yayasan Keluarga Guru Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46843/jpm.v4i2.425

Abstract

This research aims to develop and evaluate a high-quality Complex Problem Solving (CPS) test instrument based on global warming issues to assess students' Computational Thinking (CT) skills. Global warming was chosen because of its contextual relevance in 21st-century education and its potential to promote higher-order thinking. The instrument consists of six essay questions that require students to demonstrate complex problem-solving skills, including decomposition, pattern recognition, abstraction, and algorithmic thinking. The method used in this study is Research and Development (RD), which contains five stages: (1) analysis of needs, (2) development of the instrument, (3) validation by an expert, (4) trial instruments, and (5) data analysis using the Rasch Model. This instrument was evaluated using the Rasch model to examine the validity, reliability, and difficulty level of its items, which were analyzed using the Minister 3.80.1 software. The results showed that the instrument achieved the "very valid" categories for content and construct validity. The raw variance explained by the measure was 76.20%, classified as "specific," indicating strong empirical validity. The Cronbach's alpha (KR-20) value was 0.91, indicating the instrument's high reliability. The item reliability value was 0.94, and the person reliability was 0.89. This means that students' consistency in answering questions was good, and the instrument had high reliability. The distribution of item difficulty levels was balanced, allowing students to be distinguished by their abilities at various levels. It can be concluded that this instrument is reliable and valid. Thus, this instrument can measure students' computational thinking skills on global warming.
Technology and Engineering Literacy Profile of High School Students: Comparison between STEM and Non-STEM Learning Sumiati, Sumiati; Suwarma, Irma Rahma; Utama, Judhistira Aria; Riandi, Riandi; Kuroda, Tomotaka
Jurnal Pendidikan MIPA Vol 26, No 3 (2025): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpmipa.v26i3.pp1580-1593

Abstract

Technology Engineering Literacy (TEL) represents an essential competency in the 21st century, encompassing the ability to understand, evaluate, and apply technological and engineering concepts in everyday life and professional settings. This study was conducted to compare the TEL profiles of high school students engaged in Science, Technology, Engineering, and Mathematics (STEM) and non-STEM fields, with a particular emphasis on the renewable energy topic. The research employed a quantitative approach and involved 125 high school students, who were selected by purposive sampling techniques. Data were collected utilizing a TEL test instrument specifically designed for this research. Mann-Whitney analysis using SPSS 26 revealed a significant difference between STEM and non-STEM groups. Additionally, the TEL profiles of STEM and non-STEM students were evaluated by examining the percentages of complete and incomplete achievements. The findings show that students participating in STEM learning demonstrated a superior TEL profile compared to their non-STEM peers. Specifically, regarding the understanding of technological principles, 89% of STEM students completed the assessment, whereas only 75% of non-STEM students achieved this. In the context of developing solutions and reaching goals, 84% of STEM students met the completion criteria, in contrast to 63% of non-STEM students. For the technology and society dimension, 87% of STEM students completed the assessment, compared to only 59% of non-STEM students. In the design and systems area, 89% of STEM students completed the tasks, while 81% of non-STEM students did. Lastly, in the Information and Communication Technology (ICT) domain, 82% of STEM students reached the completion category, while merely 60% of non-STEM students did. These results emphasize the significant impact of STEM learning in enhancing students’ technology engineering literacy, thereby equipping students with essential skills relevant to the needs of the 21st century.    Keywords: technology_and_engineering_literacy, STEM, renewable_energy.
INTEGRASI HISAB RUKYAT AWAL RAMADAN 1442 H DENGAN MODEL VISIBILITAS KASTNER sakirman, sakirman; Utama, Judhistira Aria; Zainon, Othman bin
ELFALAKY: Jurnal Ilmu Falak Vol 6 No 2 (2022): Desember
Publisher : UIN ALAUDDIN MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/ifk.v6i2.30766

Abstract

There is no empirical evidence of the early hilal of Ramadan 1442 H that was observed through technological devices. The justification for witnessing the new moon still refers to the syar'i new moon term, not the astronomical new moon. The country of Brunei Darussalam can be used as an example when the astronomical hilal is not successfully observed, then the beginning of the hijri month is the next day or fulfills the ongoing month and there is no legal tolerance such as the use of the syar'i hilal term to replace the astronomical hilal. The integration of reckoning-rukyat is actually a methodological endeavor to perfect the criteria for the beginning of the Hijri month. Kastner's hilal visibility model is present in an effort to bridge the refinement of the criteria for the beginning of the hijri month. Through the criteria for the visibility of the hilal, Kastner offers a mathematical model that can be used as a role model for observing the hilal. Kastner's hilal visibility mathematical calculation model can be expressed in a curve that can be translated easily. Based on Kastner's hilal visibility, the early hilal of Ramadan 1442 H the hilal cannot be observed with the visual eye. Perukyat's testimony of seeing the hilal at the beginning of Ramadan 1442 H can be rejected by law because it is not based on empirical evidence in the form of a hilal image as a result of visual eye observation. According to Kasnter's hilal visibility model, the visibility of the hilal at the beginning of Ramadan 1442 H reached the maximum hilal visibility with a value of -1.68 for visual observations, the height of the hilal at the same time was 1.56 degrees (height difference between the Moon and the Sun at that time was 4, 46 degrees) with an elongation of 4.70 degrees. Observing the new moon without using tools such as a telescope, will not succeed in detecting the figure of the new moon, because the visibility of the new moon is still negative since sunset.
Co-Authors - Hilmansyah - Hilmansyah, - Achmad Samsudin Ahmad Aminudin Anggi Hanif Setyadin Ardi Rizkia Ferahenki Asmoro, Cahyo Puji Budi Dermawan Budi Dermawan, Budi Cahyo Puji Asmoro Clara Y. Yatini Costu, Bayram Deni Karsa Sondana Dhani Herdiwijaya Duden Saepuzaman, Duden Eddy Hermawan Entang Entang Entang, Entang Fajar Ramadhan Fajar Ramadhan, Fajar Fauziah, Annisa Nur'imani Ferry Mukharradi Simatupang Fitri Nurul Sholihat Hana Susanti Hana Susanti Ida Kaniawati Iman Firmansyah Iman Firmansyah Irma Rahma Suwarma Ismu Wahyudi Jungjoo Sohn Kartika Hajar Kirana Kholidah Kholidah, Kholidah Kuroda, Tomotaka Lala Septem Riza Lilis Karmilawati, Lilis Lina Aviyanti Mardian, Vivi Mimin Iryanti Mohamad Dena Nugraha Muhamad Gina Nugraha Muslim Muslim Nanang Dwi Ardi Nurfalah, Farika P Purwanto Prasetyaningsih Prasetyaningsih, Prasetyaningsih Prasetyaningsih, Prasetyaningsih Prasika Dharma Yoga, Prasika Dharma Rasdewita Kesumaningrum, Rasdewita Rhorom Priyatikanto Rhorom Priyatikanto Rhorom Priyatikanto Rhorom Priyatikanto, Rhorom Riandi Riandi Rochman, Arman Abdul Rooseno Rahman Dewanto Sakirman Sakirman Simatupang, Ferry Mukharradi Sri Ulfah Utami Suci Ramayanti Suciaty Fitriani Purba Sumiati Sumiati Sutisna, Siti Azizah Taufiq Hidayat Taufiq Hidayat Umar Fauzi Vera, Rosi Vitoria Venisia Pereira Vivi Mardian Wahyudin - Wahyudin Winny Liliawati Zainon, Othman bin