The aim was to consider whether reinforcement and punishment of an aggressive model would influence the aggression displayed by observers (children) in response to irritation
Sample
33 boys and 33 girls aged 42-71 months from Stanford university nursery
Procedure
children randomly allocated to one of three conditions all involved film of adult aggressing towards bobo doll 11 Boys and 11 girls in each group
Independent groups
Model reward condition - children saw a second adult prise model for their aggression and give them a drink and chocolate
Model punishment condition- second adult colder model and spanked three with rolled up magazine
No consequence condition- model was neither reinforced nor punished
Afterwards children were as before deliberately irritated and taken into playroom. There was key difference in procedure this time- all three groups were later offered attractive rewards to aggress towards doll
Finding
children in model punished condition were significantly less aggressive than other two groups
However introducing the reward wiped out the difference increases score significantly for all groups
Conclusion
vicarious punishment reduces imitated aggression
Reinforcement is a more powerful influence on aggression