Tehran University of Medical Sciences Iranian Journal of Psychiatry 1735-4587 8 3 2013 09 15 118 23 Sajjad Basharpoor University of Mohaghegh Ardabili, Ardabil, Iran Parviz Molavi Ardabil University of Medical Science, Ardabil, Iran Usha Barahmand University of Mohaghegh Ardabili, Ardabil, Iran Seyed Amin Mousavi Ardabil Azad University of medical science, Ardabil, Iran 2015 10 14 Objective: This research was conducted to investigate the relationship between behavioral activation-inhibition systems and bullyingvictimization behaviors among adolescents. Method: This was a correlational and cross-sectional study. Two hundred and thirty school boys were selected randomly by multistage cluster sampling method, and participated in this research. This sample responded to a demographic questionnaire, the Revised Olweus Bully/ Victim questionnaire and the child version of behavioral inhibition/activation systems Scale in their classrooms and in the presence of the researcher. The collected data were analyzed by Pearson’s correlation and multiple regressions. Result: The results showed that bullying and victimization were correlated with both behavioral activation and behavioral inhibition systems (p<0.01). The results also showed that 18% of the variance in victimization and 31 % of the variance in bullying were explained by behavioral inhibition and behavioral activation systems respectively . Conclusion: The results of this study implied that BAS and BIS may play a role in the manifestation of bullying in adolescents. https://ijps.tums.ac.ir/index.php/ijps/article/view/129 https://ijps.tums.ac.ir/index.php/ijps/article/download/129/125