Pengaruh Iklim Sekolah dan Agresivitas Terhadap Kecenderungan Perilaku Bullying pada Siswa Sekolah Menengah Atas di Kota Medan

Abstract

This study aims to determine the effect of school climate and aggressiveness on the tendency of bullying behavior in high school students in Medan City. The approach used is quantitative by involving 350 students aged 15-18 years as the research sample. Data collection was conducted using a Likert scale with five alternative answers. The school climate measurement instrument was prepared based on Gage and Larson's theory (2014) consisting of 13 items adapted from Harahap (2025), aggressiveness based on Buss and Perry's theory (1992) consisting of 26 items adapted from Rahmadini (2020), and bullying based on Olweus' theory (1993) consisting of 23 items adapted from Nadhifa (2018). Data analysis used simple and multiple linear regression. The results of the analysis showed that school climate had a significant negative effect on the tendency of bullying behavior (β = -0.094, t = -2.230, p = 0.026), and aggressiveness had a significant positive effect on bullying behavior (β = 0.125, t = 3.198 p = 0.002). Simultaneously, school climate and aggressiveness have a significant effect on bullying behavior (F = 9.644 p < 0.001) with a contribution of R² = 0.229