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Rahma, Hestia
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Education Physics Other

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EFEKTIFITAS PENGGUNAAN ASESMEN SUMATIF PADA PEMANASAN GLOBAL KELAS X SMAN 1 KOTO XI TARUSAN Olivia, Olivia; Yuliani, Suci; Habib, M; Rahma, Hestia; Anaperta, Megasyani; Yanti, Iing Rika
JRFES (Jurnal Riset Fisika Edukasi dan Sains) Vol 13, No 1 (2026): Jurnal Riset Fisika Edukasi dan Sains
Publisher : Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/jrfes.2026.v13i1.9963

Abstract

This study was motivated by the low effectiveness of summative assessment in measuring students' understanding of the Global Warming topic in Grade X at SMAN 1 Koto XI Tarusan. As a conceptual subject, this material requires an appropriate evaluation instrument. This research employed a quantitative method by analyzing the difficulty level, discriminating power, and reliability of 20 multiple-choice questions and 5 essay questions. The results showed that most objective items were classified as easy with low discriminating power, while the essay items were of moderate difficulty, had very good discriminating power, and high reliability. These findings indicate that essay questions are more effective in assessing students’ critical thinking skills and conceptual understanding. Therefore, developing high-quality assessment instruments is essential to improve the quality of learning.
Co-Authors Habib, M Iing Rika Yanti Megasyani Anaperta, Megasyani Olivia Olivia Yuliani, Suci