analyse Bibb Darley and John Latane’s (1968) model of bystander interventiondescribe social factors that influence prosocial behaviour, with reference to the reciprocity principle and social responsibilitydescribe personal characteristics that influence prosocial behaviour, with reference to empathy, mood, competence and altruismconsider factors that influence antisocial behaviour, including groupthink, diffusion of responsibility, audience inhibition, social influence and cost–benefit analysisdiscuss the general aggression model (GAM)explain how media can influence aggression, with reference to advertising, video games and social media