University of Mohaghegh Ardabili Journal of School Psychology 22520821 13 3 2024 09 22 Causal model of the relationship between negative emotions and being a victim of cyberbullying: The mediating role of emotion dysregulation, the amount of social media usage and the fear of missing out in high school students in Tehran Causal model of the relationship between negative emotions and being a victim of cyberbullying: The mediating role of emotion dysregulation, the amount of social media usage and the fear of missing out in high school students in Tehran 41 53 3355 10.22098/jsp.2024.12548.5524 FA Motahareh Hosseini Esfidvadjani PhD Student of Psychology, Science and Research Branch, Islamic Azad University, Tehran, Iran Fariborz Dortaj Professor, Department of Educational Psychology, Allameh Tabataba’I University, Tehran, Iran Reza Ghorban Jahromi Assistant Professor, Department of Educational and Personality Psychology, Science and Research Branch, Islamic Azad University, Tehran, Iran Saied Bashir Hosseini Esfidvadjani Assistant Professor, Department of Media Management, IRIB University, Tehran, Iran Journal Article 2023 03 15 <strong>Objective</strong>:  The purpose of this research was to investigate and design the causal model of the relationship between negative emotions and being a victim of cyberbullying, emphasizing the mediating role of difficulty in emotion regulation, the amount of social media use, and the fear of being left out among secondary school students in Tehran.<br /><strong>Methods</strong>: The research method was a path analysis. The population of this study consisted of all male and female high school students of Tehran city in the academic year of 2021-2022, among whom 384 were selected through convenience sampling from the north, south, west and east regions of the city. Questionnaires were used to collect data. LISREL software were used for data analysis.<br /><strong>Results</strong>: The findings show that the direct effect of negative emotions on the fear of being marginalized and the victim of cyberbullying is significant, and the fear of being marginalized has a direct effect on the victim of cyberbullying. Therefore, negative emotions cannot directly and independently lead to cyber bullying. Difficulty in emotion regulation also has only a significant indirect effect on the victim of cyberbullying, which is mediated by the fear of being marginalized. Overall, the amount of social media use shows a relatively weak but significant direct effect on cyberbullying victimization.<br /><strong>Conclusion</strong>: Fear of missing out or fear of being marginalized seems to be an effective factor on being a victim of cyberbulling. <strong>Objective</strong>:  The purpose of this research was to investigate and design the causal model of the relationship between negative emotions and being a victim of cyberbullying, emphasizing the mediating role of difficulty in emotion regulation, the amount of social media use, and the fear of being left out among secondary school students in Tehran.<br /><strong>Methods</strong>: The research method was a path analysis. The population of this study consisted of all male and female high school students of Tehran city in the academic year of 2021-2022, among whom 384 were selected through convenience sampling from the north, south, west and east regions of the city. Questionnaires were used to collect data. LISREL software were used for data analysis.<br /><strong>Results</strong>: The findings show that the direct effect of negative emotions on the fear of being marginalized and the victim of cyberbullying is significant, and the fear of being marginalized has a direct effect on the victim of cyberbullying. Therefore, negative emotions cannot directly and independently lead to cyber bullying. Difficulty in emotion regulation also has only a significant indirect effect on the victim of cyberbullying, which is mediated by the fear of being marginalized. Overall, the amount of social media use shows a relatively weak but significant direct effect on cyberbullying victimization.<br /><strong>Conclusion</strong>: Fear of missing out or fear of being marginalized seems to be an effective factor on being a victim of cyberbulling. https://jsp.uma.ac.ir/article_3355_207011b75d12fe6435752cd458e26528.pdf