This study aimed to describe school bullying behaviors from perspective of perpetrators. Samples (N = 123- 41.5% girls and 58.5% boys) were elementary and junior high school students in Bandung City. Being perpetrator was measured by frequency bullying other students physically, verbally, and psychologically in the past month. Students who were bullying others at least 2 times in the past month were categorized as perpetrators. Reasons for bullying others were measured by agreement scale. Data were analyzed using descriptive statistics by presenting percentage of bullying behavior and reasons for bullying others by gender and grades. Boys were more frequent bullying others physically, verbally, and psychologically than girls. Boys and girls reported different reasons for bullying others. Junior high school students were more frequent bullying others than elementary school students. These results suggested that school bullying happened for unnecessary reasons, therefore teachers shall pay more attention to students^ behavior at school.
Keywords: School bullying- Perpetrators- Bandung, Indonesia
