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Research method
Laboratory experiment
Design
Matched participants
Age of children
37-69 months
IV1
Aggressive/non-aggressive
IV2
Male/female model
IV3
Male/female child
Matched on
Ratings of aggression by teacher/researcher
The non-aggressive model
Quietly played with tinker toys
The aggressive model
Sat on the Bobo doll and repeatedly hit it in the face, hit it in the nose with mallet
Examples of verbal aggression
"sock him in the nose", "pow"
Examples of non-aggressive verbal responses
"He sure is a tough feller", "he keeps coming back for more"
Sample
36 boys and 36 girls from Stanford University Nursery
How many experimental conditions
8
How many in control group?
12 girls, 12 boys
Aggression arousal
After 2 minutes the researcher told them that they couldn't play with the nice toys as they were for the other children.
Time samples
Every 5 seconds
Duration of observation
20 minutes
Imitative physical aggression
Child displays one of the novel aggressive acts
Non-imitative physical aggression
Aggression but not novel acts from model
Result on children who saw aggressive model
Reproduced most physical aggression and were most generally aggressive
Result on children who saw non-aggressive model
Least aggressive, tended to play quietly
Results comparing boys and girls
Boys were more aggressive overall
Boys observing aggressive male model
More likely to imitate aggressive physical behaviours
Girls observing aggressive female model
More likely to imitate aggressive verbal behaviours
Qualitative data
Comments include male model was a "strong fighter", female model "That's not the way for a lady to behave"
The observation was
Covert, through a one way mirror
Impact on policy
The "watershed" - no violent/sexual behaviours before 9pm
Note 
Flashcard (75)