Create a situation to measure the process of obedience, even when the command required destructive behaviour
Milgram's study
Conducted in a lab to control variables
Not an experiment, but a controlled observation
Participant recruitment
Placed an advert in the New Haven newspaper for participants to volunteer for a memory and learning experiment
Participant characteristics
40 males
Jobs varied from postal clerks to engineers
Different levels of educational backgrounds
Ages ranging from 20-40
Participant payment
Paid $4.50 which they were automatically paid on arrival
Study location
Conducted at Yale University
Procedure
Study conducted at Yale University
Participants met the 'experimenter', a 31-year-old man dressed in a grey technician's coat
Another 'participant' was introduced, a mild-mannered and likeable 47-year-old accountant, Mr Wallace
Both men were accomplices of Milgram
Participant roles
1. Participants drew PAPER to decide their roles
2. Roles were rigged, so the naïve participant was the teacher and Mr Wallace was the learner
Experimental room
Learner was strapped into an 'electric chair' apparatus to prevent excessive movement
An electrode was placed on the learner's wrist and pasted to prevent blisters
Sample shock
1. Gave a sample shock (45 volts) to the "teacher"
2. Asked to rate the voltage
3. Whatever they guessed were told the voltage was lower
Shock machine
A machine with 30 switches, with 'shock' labels starting at 'slight shock' at 15 volts to 'intense shock' at 225 volts and finally 'XXX' at 450 volts, a potentially fatal shock
Using the shock machine
1. Pressing each switch causes an electric buzzing, a voltage metre moves, and various relay clicks are heard
2. The experimenter uses the third switch (marked 45 volts) to give the teacher a 'sample' shock to demonstrate the machine is real
Learning task
The teacher would have to give shocks to the learner every time they gave an incorrect answer, and these shocks increased by 15 volts
The learner was told to make no comment or protest until the shock level of 300 volts was reached
Experimenter's prods
'Please continue'
'the experiment requires you to continue'
'It is essential that you continue'
'You have no other choice, you must go on'
'Although the shocks may be painful, there is no permanent tissue damage, so go on'
Milgram made detailed observations of the teachers' behaviour
After the research was completed, the teacher was thoroughly debriefed (dehoaxed) and the experimenter reunited the teacher and learner
Milgram had surveyed 14 Yale students and they estimated that only 0-3% would give 450 volts
At 300 volts, five (12.5%) of the participants refused to continue, and 26 of the 40 participants (65%) administered the full 450 volts
Participants were distressed and nervous when given the shocks, biting their lips, sweating, trembling, stuttering, etc.
14 displayed nervous laughter, but explained after that they were not sadistic and that their laughter had not meant that they were enjoying shocking the learner
3 participants had 'full-blown uncontrollable seizures' and the experiment had to be stopped for one participant
Participant responses to follow-up questionnaire
84% were 'glad/very glad' to have taken part
15% were 'neutral' about having taken part
2% were 'sorry/very sorry' to have taken part
80% said more experiments like this should be carried out
74% felt they had learned something of personal importance
Milgram concluded that certain dynamics of a situation made it difficult for participants to disobey orders
Elements that contributed to high levels of obedience
The location of the study at a prestigious university provided authority
Participants assumed that the experimenter knew what he was doing and had a worthy purpose, so they should be followed
The participant didn't wish to disrupt the study because he felt under obligation to the experimenter due to his voluntary consent to take part
It was a novel situation for the participant, who therefore didn't know how to behave. If it had been possible to discuss the situation with others the participant might have behaved differently
The participant had very little time to resolve the conflict at 300 volts, and he didn't know that the victim would remain silent for the rest of the experiment
The participant assumed that the discomfort caused was minimal and temporary and that the scientific gains were important
The conflict was between two deeply ingrained tendencies – not to harm someone, and to obey those whom we perceive to be legitimate authorities
Internal validity
Suggested by Orne & Holland (1968) that the research lacks internal validity as the participants did not believe the electric shocks were real
It simply wouldn't have made sense that someone in a learning experiment would receive fatal shocks
Demand characteristics
Participants behaved as they were expected to behave due to the demand characteristics of the study
Gina Perry (2012) found that the participants knew they weren't hurting anyone
In the follow-up questionnaire many participants said they were suspicious because, for example, the experimenter remained so calm
Milgram (1974) reported that 75% of the participants strongly believed they were given electric shocks, 22.6% had some doubts and only 2.4% were certain that the shocks were not real
Deception
Participants were misled as they were told the study was about the effect of punishment on learning
Lack of informed consent
Deception and lack of informed consent were an issue in this study
Milgram argued that if the participants had not been deceived and were fully aware of the purpose of the study then the results would be invalid
It was difficult to withdraw from the study due to the prods and prompts of the experimenter
Lack of protection from harm
Subjects weren't protected from harm as the majority of participants were subjected to distress and, in some cases, participants suffered from seizures
Baumrind (1964) claimed that Milgram caused psychological damage to his participants that could not be justified and is unethical
Milgram did not know, before the study, that such high levels of distress would be caused
Milgram considered ending the study when he observed the participants' behaviour but decided that there was no indication of injurious effects
84% of the participants said afterwards that they were glad to have participated
Milgram argued that the potential damage to participants should be weighed against the importance of the findings