<![CDATA[This quantitative correlational research investigates the impact of emotion regulation and peer conformity, both individually and concurrently, on aggressive behavior among students at Krembung Islamic Vocational High School. Utilizing a sample of 210 students from a population of 463, the study employed the emotion regulation scale, peer conformity scale, and aggression behavior scale. Multiple regression analysis with SPSS Ver.21 revealed significant results. Emotional regulation demonstrated a negative influence on aggressive behavior, while peer conformity exhibited a positive effect. Moreover, the combined impact of emotional regulation and peer conformity on aggressive behavior was established, with an overall influence of 20.7%. These findings contribute to the understanding of factors influencing aggressive behavior in the context of vocational high school students, emphasizing the importance of emotional regulation and peer dynamics. Highlights : Impact of Emotional Regulation and Peer Conformity: The study explores the individual and combined effects of emotion regulation and peer conformity on aggressive behavior among vocational high school students. Quantitative Correlational Research: Utilizing multiple regression analysis, the research employs a quantitative approach to understand the relationships between emotion regulation, peer conformity, and aggressive behavior. Practical Implications for Education: The findings provide insights for educational institutions in addressing and managing aggressive behavior by considering the roles of emotion regulation and peer conformity among students. Keywords: emotion regulation, peer conformity, aggressive behavior, vocational high school, quantitative correlational.]]>
