-Conducted a series of experiments to study how children learned to behave aggressively. Took place at Yale University on the children of academics
-In his basic procedure, children saw an adult behave aggressively, both verbally + physically, towards a large inflatable doll, called the Bobo doll.
-Observers found that children who saw an aggressive model reproduced more of the aggressive acts than children who saw a non aggressive model.
-Children showed more imitation of same sex models and boys more aggressive then girls