The experimental conditions were standardised for each group (24 in each). children were brought into room with toys, shown a table with potato prints, were allowed to play(10 minutes) children in aggressive watched aggressive model, non aggressive watched submissive model, children in control played no model. experimenter with new toys aggravated the children claimed new toys for other children (two minutes). experimenter left, children brought in room containing a more toys. experimenter watched through one sided mirror observing children’s behaviour if it was imitative, partially or not.