Milgram's Obedience Study (AQA A-Level Psychology): Revision Notes
Milgram's Obedience Study
Stanley Milgram, Behavioural Study of Obedience, 1963
Obedience refers to following direct orders from an authority figure, even when these orders conflict with personal conscience or moral beliefs. Milgram's groundbreaking research changed our understanding of how ordinary people can commit harmful acts under authority's influence.
This study became one of the most influential and controversial experiments in psychology, forcing researchers to reconsider both the power of situational factors and the ethical boundaries of psychological research.
Participants
40 American males aged 20-50 years volunteered through a newspaper advertisement for a study on memory and learning at Yale University Psychology Department. They were paid $4 plus 50 cents for car fare, with payment guaranteed regardless of completion.
The payment was guaranteed upfront to ensure participants didn't feel financial pressure to complete the study, making their obedience more genuine rather than economically motivated.
Aim
Milgram had two primary objectives:
- Test the 'Germans are different' hypothesis, which claimed Germans were naturally more obedient and that Hitler's rise was due to unique German characteristics rather than situational factors
- Investigate whether ordinary individuals would obey authority figures when ordered to harm innocent people, potentially challenging moral principles
Procedure
The study employed a controlled laboratory experiment with systematic deception. Participants were introduced to another 'volunteer' (actually a confederate actor named Mr Wallace) and assigned the role of 'teacher' through a rigged draw. The setup involved three key positions:
- Experimenter: Authority figure in a grey lab coat providing instructions
- Teacher: The genuine participant who believed they were administering shocks
- Learner: The confederate who was strapped to a chair with electrodes attached
The participant operated a shock generator with switches ranging from 15 volts ('slight shock') to 450 volts ('danger - severe shock'). The teacher was instructed to administer increasingly powerful electric shocks for each wrong answer in a word-pair learning task.
The shock generator was designed to look authentic and intimidating, with realistic labels and warning signs to convince participants they were using genuine equipment capable of causing serious harm.
When participants showed reluctance to continue, the experimenter used standardised verbal prompts escalating from "please continue" to "you have no choice, you must go on." The learner's responses were pre-recorded, including protests, demands for release, and eventual silence after 330 volts, suggesting unconsciousness or worse.
The use of standardised prompts was crucial for maintaining experimental control - every participant received identical pressure from the authority figure, ensuring that differences in obedience weren't due to varying persuasion techniques.
Findings
Quantitative results
- 62.5% of participants (25 out of 40) administered the maximum 450-volt shock
- 100% of participants continued to at least 300 volts
- An earlier version with no verbal feedback showed 65% complete obedience
Qualitative results
Participants displayed extreme psychological distress throughout the procedure. Many exhibited physical signs of anxiety including sweating, trembling, nervous laughter, and nail-biting. Some experienced seizure-like reactions. Three participants had full nervous breakdowns. Despite this visible distress, participants continued following orders rather than protecting the learner from apparent harm.
The extreme distress observed in participants was crucial evidence that they genuinely believed they were harming another person. This distress actually strengthened the validity of the findings - participants weren't callously inflicting pain but were genuinely conflicted between their moral conscience and obedience to authority.
Conclusions
The 'Germans are different' hypothesis was decisively rejected. Ordinary Americans demonstrated remarkable obedience to authority, suggesting that the Holocaust and similar atrocities reflect situational pressures rather than unique national characteristics. The results indicated that most people will obey authority figures even when orders conflict with moral principles, particularly when the authority appears legitimate and the setting seems official.
This conclusion had profound implications for understanding genocide, war crimes, and institutional abuse. It suggested that under the right circumstances, ordinary people everywhere might be capable of participating in harmful acts when directed by authority figures.
Evaluation: Strengths
Methodological contributions
Milgram established the fundamental paradigm for studying obedience that influenced decades of subsequent research. The study's controlled laboratory conditions allowed precise measurement of obedience levels and systematic manipulation of variables.
Practical applications
The findings helped explain real-world phenomena including military atrocities, corporate wrongdoing, and institutional abuse. The research provided insights into events like the Abu Ghraib prison abuse, where gradual commitment, senior authority figures, and dehumanisation processes paralleled Milgram's findings.
Real-World Application: Abu Ghraib Prison
The abuse at Abu Ghraib prison in Iraq showed striking parallels to Milgram's findings:
- Guards followed orders from authority figures
- Gradual escalation of harmful behaviour occurred
- Institutional setting provided legitimacy
- Victims were dehumanised and distanced from perpetrators
Surprising and significant results
The high obedience rates contradicted expert predictions - psychiatrists had estimated only 1% would administer maximum shocks. This highlighted the power of situational factors over individual personality in determining behaviour.
The dramatic difference between expert predictions and actual results demonstrated how even professionals underestimated the power of situational pressures and overestimated the role of individual moral character in determining behaviour.
Evaluation: Weaknesses
Ethical concerns
Psychological harm: Participants experienced severe stress, with three suffering seizures and lasting distress reported. However, follow-up interviews revealed 74% felt they had learned something valuable, and psychiatric assessments showed no long-term damage.
Deception and informed consent: Participants were misled about the study's true purpose and believed they were genuinely harming another person. The 'learner' was an actor receiving no shocks, making informed consent impossible.
Right to withdraw: Although 35% of participants did withdraw, the experimenter's verbal prods discouraged departure, potentially violating participants' autonomy.
Modern Ethical Standards
This study could not be conducted today under current ethical guidelines. The level of deception and psychological stress would be considered unacceptable, highlighting how ethical standards in psychology have evolved significantly since the 1960s.
Methodological limitations
Internal validity: Critics argue participants may have realised the shocks were fake, questioning whether genuine obedience occurred. However, 75% reported believing the shocks were real in post-study interviews, supported by their extreme stress responses.
External validity concerns:
- Androcentrism: Using only male participants limits generalisability, though Sheridan and King's research with real shocks to puppies found females actually more obedient
- Cultural bias: The study used only American participants. Cross-cultural research shows variation - Spanish participants showed 90% obedience while Australians showed only 28%, suggesting cultural attitudes towards authority influence results
- Historical validity: The 1960s American context may not reflect contemporary obedience levels, as social attitudes towards authority have shifted significantly
- Ecological validity: Laboratory conditions differ substantially from real-world authority relationships, limiting the applicability of findings to everyday obedience situations
Cross-Cultural Variations
The significant differences in obedience rates across cultures (90% in Spain vs 28% in Australia) suggest that cultural values and attitudes towards authority play a crucial role in determining obedience levels, challenging the universality of Milgram's original findings.
Contemporary relevance
While Milgram's findings remain influential, ethical standards now prevent direct replication. Modern research must balance scientific value with participant welfare, leading to modified procedures that may not capture the original study's psychological impact.
Key Points to Remember:
- 62.5% of ordinary people administered potentially lethal shocks when ordered by an authority figure
- The study demolished the 'Germans are different' myth, showing obedience is situational rather than cultural
- Deception was necessary for realistic responses, but created significant ethical dilemmas about informed consent
- The research established the standard paradigm for obedience studies still used today
- External validity concerns mean findings may not generalise across cultures, genders, or historical periods