40 males volunteered to
take part on the study of
how punishment affects
learning
Participants were the 'teacher'
and the 'learner' was a
confederate
Instructed to deliver electric
shocks if the learner got a
question wrong
The shocks increased by 15V
each time, up to 450V
Results
All participants went to 300V
65% went all the way to 450V
Variations
Experimenter gives
instructions over the phone
In a run down office
Removing buffers
Evaluation
Internal validity
Orne and Holland - people have learned to
distrust experimenters because they know
the real aim is likely to be disguised. So in
Milgram's study, Ps must have known they
were not giving electric shocks
Deception and lack of informed consent
Participants were unaware of the
real purpose, and therefore denied
the right to give informed consent
Protection from harm
Milgram placed Ps under great emotional
strain, causing them psychological harm.
Milgram argued that interviews after the study
found no evidence of harm