To see whether young children will imitate
behaviour they have seen.
IV
1) whether the role model was
aggressive or non-aggressive
(2) whether the role model was the same
sex or opposite sex to the child
(3) a Control condition where the
children did not see a role model at
all.
DV
Bandura’s observers recorded the number of
verbal, physical, mallet and gun-play aggressive
actions the children carried out
SAMPLE
72 children, 36 boys and 36 girls, aged 3-5, recruited from Stanford University Nursery School.
PROCEDURE
72 children aged 3 –5 yrs matched for
aggression before the study started
Some groups watched aggressive behaviour; some
non-aggressive behaviour and control group watched neither.
Laboratory Experiment at
Stanford University. 8
experimental groups in 4
conditions.
Children were playing in a room when an adult entered and either behaved aggressively or
non-aggressively.
Children were then put in a slightly aggressive state by being told they could not play with certain toys.
Then behaviour observed with access to a Bobo doll and child was observed.
The child was observed playing with the toys for 20 minutes through a one-way mirror.
RESULTS
Children in non-aggressive state showed almost no
aggression, (70%).
Those that watched aggressive models showed physical and verbal aggression imitating model.
The boys showed more nearly twice as much imitative aggression than the girls
However, the girls showed similar levels of physical and verbal aggression, while the boys had a
tendency to model physical aggression much more than verbal aggression.
CONCLUSION
Children watching adults behaving aggressively are more
likely to imitate aggression so observational learning does
take place.
Children also imitated non-aggressive behaviour, which led to less aggression.
A male adult showing aggressive behaviour is copied more than a
female adult aggressive model.
Girls are more verbally aggressive
EVALUATION
GENERALISABILTY
A sample in all three studies was large: 72, 96 and 66, large enough that anomalies (eg disturbed
children) might be cancelled out (eg by particularly mild mannered ones).
RELIABILITY
Bandura also used two observers behind the one-way mirror. This
creates inter-rater reliability because a behaviour had to be noted by
both observers otherwise it didn’t count.
APPLICATION
Can be applied to parenting and teaching
styles as it suggests children observe and
imitate adults
VALIDITY
Lacks ecological validity because it is a lab experiment
ETHICS
The children may have been distressed by the aggressive
behaviour they witnessed
The aggressive behaviour they learned from the study may
have stayed with them, going on to become a behavioural
problem.