Indah Indi Afifah, Amat Jaedun
This research aims to identify the effect of bullying on students' grade IX Mathematics learning achievement. This research adopted a quantitative method and used a descriptive approach. The subjects of this research were students grade IX of SMP Negeri 2 Narmada in the academic year of 2019/2020 with the total number of 88 students. In collecting the data, there were two resources, namely primary and secondary data, which were obtained through a questionnaire and the students' Mathematics' scores. The questionnaire was given directly to the students, and their mathematics's score was collected from their report cards in grade VIII. The collected data was analyzed by using the Anova test. Based on the analysis of the data, the result shows that there are differences in students' Mathematics' achievement based on the intensity of them receiving the bullying. The students who have significant differences in their mathematics achievement are those who were almost never and were rarely got bullied. Furthermore, it is known that the students who were rarely get bullied have the best performance compared with those who have never get bullied and those who are often get bullied. © Published under licence by IOP Publishing Ltd.
Graduate School, Yogyakarta State University, Yogyakarta, 55281, Indonesia
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