Gunawan, Cahya Widya
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Development of Canva Aplication based E-Magazine on Static Fluids to Improve Student Motivation Gunawan, Cahya Widya; Risdianto, Eko; Putri, Desy Hanisa
Kasuari: Physics Education Journal (KPEJ) Vol 5, No 2 (2022): December 2022
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37891/kpej.v5i2.374

Abstract

This study aims to test the feasibility of E-magazine learning media on static fluid materials to increase student motivation. This research method is ADDIE development model. The assessment instrument used in this study was an expert validation sheet which consisted of content aspects, presentation aspects, linguistic aspects, media aspects and motivational aspects and student perception sheets which consisted of several aspects, namely, material aspects, language aspects, and media aspects. Based on the results of expert validation from. Based on the results of the product validation test, the validator gets an overall average percentage of 86.92% with a very decent category. Based on the results of students' perceptions of the E-magazine, it can be said to be very good in the three Schools, with an overall average percentage of 87.22%. So it can be concluded that learning media products based on E-magazines on static fluid material to increase student learning motivation are very feasible to use.
Developing and analyzing items of a physics conceptual understanding test on wave topics for high school students using the Rasch Model Rasyid, Fauziah; Istiyono, Edi; Gunawan, Cahya Widya; Kijambu, John Baptist
REID (Research and Evaluation in Education) Vol. 11 No. 1 (2025)
Publisher : Graduate School of Universitas Negeri Yogyakarta & Himpunan Evaluasi Pendidikan Indonesia (HEPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/reid.v11i1.75575

Abstract

This study aims to develop, validate, and analyze test items for assessing the understanding of mechanical wave concepts among high school students. The test development process followed the Mardapi instrument development model, which includes: (1) constructing test specifications, (2) writing test items, (3) reviewing test items, (4) piloting the test, and (5) analyzing the items. The developed instrument consists of 12 multiple-choice items, covering three aspects of conceptual understanding: translation, interpretation, and interpolation. Content validity was assessed by three validators, and the results were analyzed using the Aiken V method. The instrument was then administered to 257 high school students in South Sulawesi Province. The results were analyzed using Item Response Theory (IRT) with the Rasch model through the Quest program. Item analysis included item fit estimation, reliability, and item difficulty. The content validity test results indicate that the instrument is valid. All items fit the Rasch model, with a reliability coefficient of 0.95, categorized as high reliability. Item difficulty analysis revealed that 8.3% of items were categorized as easy, 8.3% as difficult, and 83.3% as moderate. Overall, the results indicate that the test instrument is of good quality and can be used to assess high school students’ understanding of mechanical wave concepts.