36 boys and 36 girls aged 3-6
Pre tested to see how agressive they were on a 5 star scale and matched similar children in pairs
Separated pairs into 3 models - aggressive, with a female and male model, non agressive with female and male and no model
Agressive models would act aggressively towards the bobo dolls and non agressive models would ignore it
Children were put in the room with the bobo doll and agressive and non agressive toys and were given 20 minutes being observed in 5 second intervals