The purpose of this study was to examine the role of anger in the relationships between various internalising symptoms and direct and indirect aggression. A sample of 241 adolescents aged 12–17 years completed the Screen for Child Anxiety Related Emotional Disorders, Centre for Epidemiological Studies Depression scale (CES-D) and the Buss–Warren Aggression Questionnaire (AQ-15). Symptoms of panic disorder, generalised anxiety disorder and depression, but not social phobia, were positively correlated with anger, direct aggression and indirect aggression. When considered simultaneously in regression analyses, only symptoms of depression contributed to variance in the anger and aggression variables. However, using indirect effect modelling, no direct relationships were found between the internalising symptom variables and the aggression variables. Instead, the data suggested that the relationship between internalising symptoms and aggression is mediated by the emotion of anger. These findings suggest that the degree to which anger co-occurs with internalising symptoms may play an important role in an individual’s propensity to engage in aggressive behaviour.
