Abstract
This study intends to investigate the moderating effect of online disinhibition on the relationship between Facebook addiction and aggression among criminology students in Davao del Sur. A quantitative, descriptive-correlational design with hierarchical regression analysis was utilized, involving 345 criminology students from four academic institutions. Facebook addiction was measured through indicators such as salience, mood modification, tolerance, withdrawal, conflict, and relapse, while aggression encompassed forms such as physical aggression, verbal aggression, anger, and hostility. Findings revealed that there is a significant and positive correlation between Facebook addiction and aggression. This implies that the more addicted criminology students are to Facebook, the more likely they are to show aggressive behaviors. Meanwhile, online disinhibition has no direct effect on the relationship between Facebook addiction and aggression. The results affirm the importance of addressing issues of addiction and aggression among students to promote mental well-being and academic success. These findings contribute to criminology students, faculty, and parents by creating a more supportive and productive learning environment and by preparing students to navigate both their academic careers and future professional roles in a balanced and responsible manner.