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Journal : physics learning and education

Validity and Practicality of Instrument Minimum Competency Assessment (AKM) Reading Literacy and Numeracy Literacy of High School Students on Temperature and Heat Material Ulfa, Aulia; Desnita, Desnita; Festiyed, Festiyed; Emiliannur, Emiliannur
Physics Learning and Education Vol. 3 No. 3 (2025): September Edition
Publisher : Department of Physics Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ple.v3i3.275

Abstract

Penelitian ini bertujuan untuk menghasilkan instrumen asesmen kompetensi minimal (AKM) yang valid secara teoritis, praktis, serta valid dan reliabel secara empiris. Metode penelitian yang digunakan adalah R&D dengan model ADDIE. Data validitas diperoleh dari hasil validasi 3 dosen ahli Fisika FMIPA UNP, data praktikalitas diperoleh dari guru dan siswa SMAN 13 Padang dan data uji coba terbatas diperoleh dari 25 siswa SMAN 13 Padang. Teknik pengumpulan data dalam penelitian ini menggunakan validitas instrumen, praktikalitas, dan butir-butir instrumen AKM. Instrumen AKM ini telah tervalidasi dan dinyatakan valid dengan nilai rata-rata 0,95. Hasil uji praktikalitas oleh guru memperoleh rata-rata 94,66% dengan kategori sangat kuat dan praktikalitas oleh siswa memperoleh nilai rata-rata 85,22% dengan kategori sangat kuat. Seluruh butir yang diuji dinyatakan valid dan reliabel secara empiris. Reliabilitas instrumen AKM sebesar 0,913 dengan kategori sangat tinggi. Dengan demikian, dapat disimpulkan bahwa instrumen AKM dapat digunakan untuk mengukur kemampuan literasi membaca dan literasi numerasi siswa.
Analysis of Students' Critical Thinking Ability Instruments in Thermodynamics Material Phase F SMA/MA Reviewed from Validity, Reliability, Level of Difficulty and Differentiation Batubara, Nurjannah; Emiliannur, Emiliannur
Physics Learning and Education Vol. 3 No. 4 (2025): December Edition
Publisher : Department of Physics Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ple.v3i4.297

Abstract

This study aims to determine the quality of critical thinking ability test instruments on the material Phase F Thermodynamics of SMA/MA in terms of validity, reliability, level of difficulty, and differentiating power. The research method used is a descriptive technique. The data consists of 31 sheets of student answers in grade XI of the 2025/2026 school year. The data were analyzed using several formulas of validity, reliability, difficulty, and differentiation. The method used to collect data is the test method. The results showed that 20 questions were valid and 1 question was invalid. The level of reliability is good where the value of the reliability coefficient r_11> is 0.842 so that the question instrument is declared reliable. Meanwhile, the difficulty level of the 21 questions was stated to be moderate, the difficulty index was in the range of 0.30 < kindergarten ≤ 0.70. The difference in the good category is 2 questions, in the enough category there are about 12 questions, which is said to be bad there are about 7 questions.
Analysis of Validity, Reliability, Difficulty Level, and Discrimination Power of Students’ Critical Thinking Skill Test on Phase F Fluid Materials in Senior High School Putri, Nur Tasya; Emiliannur, Emiliannur
Physics Learning and Education Vol. 4 No. 1 (2026): March Edition
Publisher : Department of Physics Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ple.v4i1.314

Abstract

A high-quality assessment instrument is one that provides data that reflects actual conditions, is consistent and reliable, demonstrates varying levels of difficulty, and has a good discrimination index. Therefore, this study aims to test the validity, reliability, difficulty level, and analytical power of the items used to assess students' critical thinking skills. This study is descriptive and evaluative. The subjects were 31 11th-grade students at SMA Negeri 2 Painan. The data collection method used was a test. The study results indicated that for Grade XI, 17 test items were deemed valid, whereas 1 item was invalid. The reliability coefficient for Grade XI was 0.877, demonstrating that the test instrument is reliable. Regarding difficulty level, all 18 items were classified as difficult. In terms of discrimination power, 5 items fell into the poor category, while 13 items were categorized as fair. Based on the analysis of physics test items on the topic of fluids for the 2024/2025 academic year at SMA Negeri 2 Painan, it was concluded that the 11th-grade test items were valid and reliable. This indicates that the test items can be used as an evaluation tool.
VALIDITY AND PRACTICALITY OF A COGNITIVE CONFLICT-BASED ELECTRONIC ASSESSMENT ON WORK AND ENERGY TO EVALUATE HIGH SCHOOL STUDENTS’ CRITICAL THINKING SKILLS Salsabila, Amalia; Mufit, Fatni; Darvina, Yenni; Emiliannur, Emiliannur
Physics Learning and Education Vol. 4 No. 1 (2026): March Edition
Publisher : Department of Physics Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ple.v4i1.330

Abstract

The integration of information and communication technology (ICT) in education has encouraged the use of electronic assessments to support the evaluation of higher-order thinking skills, particularly critical thinking in physics learning. However, existing assessments are still limited in effectively measuring these skills. This study aims to develop a cognitive conflict-based electronic assessment on work and energy and to determine its content validity and practicality in evaluating high school students’ critical thinking skills. This study employed a Research and Development (R&D) method using Plomp’s model, which consists of preliminary research, development or prototyping, and assessment stages. The subjects were physics teachers and students of State Senior High School 10 Padang with varying levels of critical thinking skills. The instruments included a validation sheet and a practicality questionnaire. Content validity was analyzed using Aiken’s V index, while practicality was analyzed using percentage techniques. The results showed that the developed assessment has a high level of content validity, with an average Aiken’s V value of 0.85, categorized as “highly valid,” and is highly practical, with scores above 96% across all evaluation stages. Therefore, the assessment is suitable for evaluating students’ critical thinking skills in physics learning and can be used as an effective tool to support the improvement of learning evaluation quality.