Specifically to see whether strangers
brought together into a group with
common goals will form a close group,
and to see whether 2 such groups
brought into contact and competition
will become hostile towards each other.
Procedure
Participants
22, twelve
year old
boys
White, American,
Middle-class
protestants
They were transported
in 2 groups to the
Robber's Cave National
Park in Oklahoma
At the camp, the
2 groups lived
seperately
Field
study
3 stages
1. In-group Formation
For 5 days each group was
given tasks to carry out
together in order to help
them bond
Each group was given a
name- Eagles and Rattlers,
to help further strengthen
their group identity
2. In-group Relations,
The Friction Phase
Over the next 4 days, friction
between groups was encouraged
by means of competitions
between the groups for attractive
prizes E.g. penknives
3. Inter-group Relations,
The Integration
This stage was designed to reduce
the tension between the groups,
they were brought together, initially
to watch films and then to take part
in joint problem-solving activities
In one of these activities the water
supply was blocked by 'vandals',
and the 2 groups worked together
to remove the blockage
In another, the groups
had to pool their
money to pay for a film
all the boys wanted to
watch
In the 3rd activity the
groups worked together to
free a truck apparently
stuck in the mud
Results
Stage 1
The boys bonded within
their groups and, although
they had not met, each
group expressed dislike for
the other group
Stage 2
Competition led to
immediate hostility
The Eagles
refused to
eat with the
Rattlers
When together the groups
shouted insults at each
other and were reported by
observers to come close to
physical violence
Both groups
raided the
others huts
and burned
their flags
Prizes awarded
were stolen
Stage 3
Early activities in stage 3,
which involved getting
the groups together
without competition,
didn't reduce hostility,
however the joint
problem solving task did
Following these, both
groups opted to share a
bus home and the Rattlers
spent a $5 prize won in
one competition on drinks
for both groups
Conclusion
Some hostility was
observed between the
groups as soon as they
were aware of each other.
Once competition
was introduced this
became more
intense.
This suggests that competition is
a factor in leading to
discrimination between groups,
but that some discrimination
takes place without competition
However, when groups work
together on cooperative tasks that
benefit both of them, prejudice and
discrimination can be reduced
Evaluation
Strengths
All same
age and
background
fair
Can control
the variables
If repeated in the same
way, different prizes
would get similar results
Can be
applied to
lots of
situations
E.g. Bradford Race Riots
High
historical
validity
Field experiment
(natural setting so
shows real
behaviour)