milgram

• Milgram’s sample consisted of 40 male participants from a range of occupations and backgrounds. The participants were all volunteers who had responded to an advert in a local paper, which offered $4.50 to take part in an experiment on ‘punishment and learning’.

  They were all invited to a laboratory at Yale. The teacher was instructed to administer an electric shock when the learner made a mistake + increase the voltage. At 180 volts, learner complained of a weak heart. At 300 volts he banged on the wall and demanded to leave. At 315 volts he became silent - unconscious, or even dead.
• Milgram found that all of the real participants went to at least 300 volts and 65% continued until the full 450 volts. He concluded that under the right circumstances ordinary people will obey unjust orders.
• Milgram’s study has been criticised for lacking ecological validity. Milgram tested obedience in a laboratory, which is very different to real-life situations of obedience, where people are often asked to follow more subtle instructions, rather than administering electric shocks. As a result we are unable to generalise his findings to real life situations of obedience and cannot conclude that people would obey less severe instructions in the same way.
• Finally, Milgram’s research lacked population validity. Milgram used a bias sample of 40 male volunteers, which means we are unable to generalise the results to other populations, in particular females, and cannot conclude if female participants would respond in a similar way.
• Milgram conducted a variation in a run down building in Bridgeport, Connecticut. The experiment was no longer associated with Yale University and was carried out by the Research Association of Bridgeport. In this variation the percentage of participants who administered the full 450 volts dropped from 65% to 47.5%. This highlights the impact of location on obedience, with less credible locations resulting in a reduction in the level of obedience.
• Milgram conducted a variation where the teacher and learner where seated in the same room. In this variation the percentage of participants who administered the full 450 volts dropped from 65% to 40%. Here obedience levels fell, as the teacher was able to experience the learner’s pain more directly. In another variation, the teacher had to force the learner’s hand directly onto the shock plate. In this more extreme variation, the percentage dropped even further, to 30%. In these two variations, the closer the proximity of the teacher and learner, the lower the level of obedience.
• The percentage of participants who administered the full 450 volts when being instructed by an ordinary man, dropped from 65% to 20%, demonstrating the dramatic power of uniform.