Bambang Subali, Ellianawati, Ridho Adi Negoro, Pratiwi Dwijananti, Aulia Silvina Anandita, Natalia Erna Setyaningsih
Graph interpretation skills are essential for students, especially in understanding data derived from educational research. However, many students struggle to understand and interpret graphs, particularly in the context of the Educational Research Statistics course. This study aims to analyze the improvement in students' graph interpretation abilities after using contextually and applicably developed teaching materials for the course. The research employed a The research applied a quasi-experimental design of one group with pretest and posttest measures. The sample included 17 students enrolled through the Educational Research Statistics course during the even semester of 2024/2025 at Universitas Negeri Semarang. The instrument used was a graph interpretation test administered before and after the intervention. Students' learning outcomes were also analyzed through their scores on assignments, quizzes, the midterm, and the final examinations. The findings indicated a substantial improvement in students' graph interpretation skills, as indicated by increased average scores in assignments, quizzes, and final exams. Most students achieved final grades in the A category (scores ranging from 86-89), with high participation and attendance levels. The study concludes that the use of contextually designed teaching materials in the Educational Research Statistics course effectively enhances students' graph interpretation skills. © Published under licence by IOP Publishing Ltd.
Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Indonesia
