This study investigated the influence of emotion regulation and impulse control ability on the aggressive behaviour of selected secondary school students in Lagos Metropolis. The study was conducted among 318 secondary school students, comprising 158 males and 160 females with ages between 10 and 18 years old. The participants were selected through a convenience sampling technique.

Data were collected using a set of questionnaires that included three standardized psychological instruments: the Barratt Impulsiveness Scale (BIS-15), the Emotion Regulation Questionnaire for Children and Teenagers (ERQ-CA), and the Buss-Perry Aggression Questionnaire (BPAQ). Four hypotheses were tested using Pearson Correlation and a PERMANOVA analyses. The findings of the study indicate that impulse control ability significantly correlates with aggressive behaviour.

Further, finding shows that teenagers who demonstrated cognitive reappraisal regulation had low aggression scores. The result also shows that emotion regulation is associated with aggression. The study discusses how teenagers with aggressive behaviour can be supported to build emotion regulation and impulse control skills to live harmoniously with peers and others.