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Social Influence
Zimbardos Study
Zimbardo's A01
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Cards (17)
Mock prison
Prison set up in the
basement
of the psychology department at
Stanford
University
Emotionally stable students
Students who volunteered were
emotionally stable
Psychological
testing
Various
tests
and
assessments
conducted on the students
Random assignment
Students
randomly assigned
roles of
prisoners
(Ps) and
guards
(Gs)
Arrested
Prisoners (Ps) were arrested in their
homes
by local
police
,
blindfolded
,
strip-searched
,
deloused
and given
uniforms
and
numbers
Rules for prisoners
Prisoners (Ps) had
16
rules to follow
Shifts for guards
Guards
(Gs) worked in shifts of
3
at a time
Handcuffs and club
Guards
(Gs) were equipped with
handcuffs
and a
wooden
club
Enthusiastic guards
Guards
(Gs) were very
enthusiastic
about their roles
Experiment duration
The experiment was planned for
14
days but was stopped after
6
days
Prisoner rebellion
Prisoners
(Ps) rebelled on the
2nd
day by ripping their
uniforms
and
shouting
Guard retaliation
Guards
(Gs) retaliated to the rebellion using
fire extinguishers
and
'divide
and
rule'
tactics
Constant harassment
Guards
(Gs) constantly
harassed prisoners
(Ps) with
headcounts
and
monitoring
Psychological
damage
Some prisoners (Ps) showed signs of
psychological
damage and were released. E.g:
first
day
Hunger
strike
One
prisoner
(P) went on a
hunger
strike where they were put in
'the hole'
as punishment
Brutal and aggressive guards
Some guards (Gs) exhibited
brutal
and
aggressive
behavior
Conformity to roles
Both guards (Gs) and prisoners (Ps) conformed to their
assigned
roles