> Controlled environment. Children divided into two conditions.
> In the non-aggressive condition, the children observed the model assemble toys in a quiet manner ignoring the bobo doll.
> In the aggressive condition, the children observed the model acting aggressively towards the bobo doll.
> The “model” performed new aggressive behaviours not expected of children e.g. hitting it on the head with a mallet, or punching it in the nose repeatedly.
> Verbal aggression included shouting phrases such as “sock him in the nose.”