This study aims to analyze the effectiveness of written tests in measuring students’ conceptual understanding in Physical Education, Sports, and Health (PJOK) at the elementary school level. The research employed a quantitative approach with a descriptive method. The subjects consisted of 60 students from grades I to VI at SD Negeri Traju 02, selected using proportional sampling technique. The research instrument was a 20-item multiple-choice test validated through expert judgment. Data collection techniques included written tests and documentation, while data analysis was conducted descriptively using validity testing with Product Moment correlation, reliability testing with Cronbach’s Alpha, and analysis of item difficulty and discrimination index. The results indicated that most test items were valid and highly reliable, with moderate difficulty levels and acceptable to good discrimination power. Overall, the written test was considered sufficiently effective in measuring students’ conceptual understanding, although it still had limitations in assessing higher-order thinking skills. Therefore, more varied and contextual evaluation instruments are needed to improve the quality of student learning assessment.
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