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All Journal Journal of Education and Learning (EduLearn) Jurnal Pendidikan Fisika dan Teknologi Jurnal Aplikasi Dan Inovasi Ipteks SOLIDITAS
Lia Yuliati
State University Malang
Humanities Education Environmental Science Library & Information Science Physics Social Sciences Other

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Concept Acquisition of Rotational Dynamics by Interactive Demonstration and Free-Body Diagram Ogi Danika Pranata; Lia Yuliati; Dr. Wartono
Journal of Education and Learning (EduLearn) Vol 11, No 3: August 2017
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.992 KB) | DOI: 10.11591/edulearn.v11i3.6410

Abstract

The concepts of force and motion are essential material in physics. However, students experience many difficulties in the concept of force in rotational dynamics. This research was conducted to measure students’ concept acquisition of the rotational dynamics through Interactive Demonstration assisted by Free-body diagram. The mixed research method was chosen through the use of test instruments in the forms of 10 multiple-choice with open ended questions. The subjects of the research were 35 students XI IPA Senior High School 2 Sungai Penuh-Indonesia. Students’ concept acquisition was measured before and after the intervention to be analyzed quantitatively. The obtained N-gain score was 0.47, and it showed that there was a moderate improvement in students’ concept acquisition, while the effect size value was 1.82 showing that the intervention strongly affected students’ concept aquisition. The data were also supported by the results of the qualitative analysis of the students’ answers and worksheets given during the intervention process.
Pelatihan Assessment For Learning Berbantuan Program Try Out Dan Web Voting Bagi Guru Fisika Di Kota Malang Sentot Kusairi; Lia Yuliati; Asim .; Nurul Hidayat; Sujito .
JURNAL APLIKASI DAN INOVASI IPTEKS "SOLIDITAS" (J-SOLID) Vol 1, No 2 (2018): Jurnal Aplikasi Dan Inovasi Ipteks SOLIDITAS
Publisher : Badan Penerbitan Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1563.074 KB) | DOI: 10.31328/js.v1i2.902

Abstract

Kegiatan pelatihan ini bertujuan  meningkatkan kapasitas guru-guru  fisika SMA dalam menyelenggarakan kegiatan asesmen utamanya assessment for learningberbantuan aplikasi komputer.  Target kegiatan adalah meningkatkan wawasan tentang  peranan assessment for learningdalam pembelajaran, keterampilan menggunakan aplikasi Webvoting, dan memanfaatkan aplikasi Tryout dalam pembelajaran. Tahapan pertama pelatihan dan workshop adalah diskusi dan sharing berkaitan dengan pelaksanaan dan kendala penilaian pada saat ini. Guru fisika menyepakati bahwa pelaksanaan assessment for learning tidak mudah dilakukan dan memerlukan penggunaan teknologi. Pada tahapan ini dilakukan pula pemaparan tentang peranan  asesmen for learning dalam pembelajaran dengan cara mengimplementasikan Five Key Element of Assessment For Learning. Pada tahapan berikutnya, dilanjutkan dengan pelatihan penggunaan aplikasi Tryout dan Aplikasi Webvooting. Guru fisika telah trampil dalam mengimplementasikan assessment for learning di kelas, namun penggunaan aplikasi Tryout dan webvoting membutuhkan penyiapan instrument berupa soal pilihan ganda isomorfik yang memerlukan pelatihan tersendiri. Penuangan hasil implementasi dalam bentuk karya ilmiah juga masih memerlukan pendampingan secara berkelanjutan
Diagnosing Students’ Vector Concept Understanding Through Rasch Model Analysis Elyanti Elyanti; Khusaini Khusaini; Lia Yuliati
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 12 No 1 (2026): January-June
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v12i1.11558

Abstract

Accurate measurement of students’ conceptual understanding of vectors requires assessment instruments with sound psychometric properties. This study aims to examine the validity, reliability, and item difficulty of a vector concept understanding instrument for high school students using Rasch model analysis. The study employed a descriptive quantitative design involving 30 high school students who had studied vector material. Data were collected through a 25-item multiple-choice test and analyzed using the Rasch model via Winsteps version 3.68.0. The results indicated that 15 items met the Rasch model fit criteria and could be retained as valid items, while 10 items required revision. The instrument demonstrated good internal consistency with a Cronbach’s alpha of 0.83, item reliability of 0.81, and test-retest reliability of 0.75. Item difficulty analysis revealed a variation in difficulty levels capable of effectively distinguishing students’ abilities. Items regarding vector components were found to be the most difficult concept for students to understand, whereas the concept of vector direction was relatively easier to grasp. These findings indicate that Rasch analysis is not only effective for evaluating instrument quality but also useful for identifying students’ misconceptions and learning difficulties regarding vector material. Pedagogically, these research results can help teachers design more targeted learning strategies, particularly in strengthening students’ understanding of vector components through visual and representational approaches. This study contributes to the development of diagnostic-based physics assessment and supports the use of the Rasch model as a robust approach in refining physics learning evaluation instruments.
Co-Authors Asim . Elyanti Elyanti Khusaini Khusaini Nurul Hidayat Ogi Danika Pranata Sentot Kusairi Sujito . Wartono Wartono