This cheat sheet covers major psychology studies on conformity and obedience, including Asch, Milgram, and Zimbardo. Students need these studies to understand how social pressure can shape choices, judgments, and behavior. The topic also helps explain why people may follow a group or an authority figure even when they feel unsure or uncomfortable.
It is especially useful for comparing research methods, findings, and ethics.
Key Facts
- Conformity means changing behavior, beliefs, or answers to match a group, often because of normative social influence or informational social influence.
- Normative social influence follows the principle: desire for acceptance plus fear of rejection leads to public conformity.
- Informational social influence follows the principle: uncertainty plus belief that others know more leads to private acceptance.
- In Asch's line study, about 75% of participants conformed at least once when confederates gave obviously wrong answers.
- In Milgram's obedience study, 65% of participants continued to the highest shock level of 450 volts when instructed by an authority figure.
- Obedience increases when the authority figure appears legitimate, is physically close, and accepts responsibility for the action.
- Zimbardo's Stanford Prison Experiment suggested that assigned social roles and situational power can strongly influence behavior, but the study is criticized for ethics and demand characteristics.
- Ethical research requires informed consent, protection from harm, the right to withdraw, confidentiality, and debriefing after deception.
Vocabulary
- Conformity
- Conformity is changing behavior, attitudes, or answers to match the real or imagined pressure of a group.
- Obedience
- Obedience is following a direct command from an authority figure.
- Normative Social Influence
- Normative social influence occurs when a person conforms to be liked, accepted, or not rejected by a group.
- Informational Social Influence
- Informational social influence occurs when a person conforms because they believe others have accurate information.
- Confederate
- A confederate is a person in a study who appears to be a participant but is actually working with the researcher.
- Debriefing
- Debriefing is the process of explaining the true purpose, methods, and possible effects of a study after participation.
Common Mistakes to Avoid
- Confusing conformity with obedience is wrong because conformity involves group pressure, while obedience involves a direct order from an authority figure.
- Saying Asch proved people always conform is wrong because many participants resisted group pressure, and conformity depended on factors such as group size and unanimity.
- Ignoring ethics in Milgram's study is wrong because the research raised serious concerns about stress, deception, and participants' belief that they had harmed someone.
- Treating Zimbardo's prison study as simple proof that roles control all behavior is wrong because the study had methodological problems, possible researcher influence, and limited generalizability.
- Assuming social influence is always negative is wrong because conformity and obedience can also support safety, cooperation, learning, and social order.
Practice Questions
- 1 In a class of 32 students, 24 students raise their hands after hearing most classmates support an answer. What percentage of the class conformed?
- 2 In a Milgram-style summary, 26 out of 40 participants obeyed to the maximum level. What percentage obeyed?
- 3 A student changes an answer on a worksheet because five friends chose a different answer, even though the student still thinks the original answer is correct. Is this more likely normative or informational social influence? Explain.
- 4 Why might an ordinary person obey an authority figure even when the action conflicts with their personal values?
Understanding Conformity & Obedience Studies
Social pressure works through several small signals. A person notices facial expressions, silence, laughter, or quick agreement from others. A unanimous group can make an incorrect answer feel risky to challenge.
One dissenting person often reduces that pressure, even when the dissenter is not fully correct. This shows that people do not need a perfect ally. They may only need proof that disagreement is possible.
Conformity is stronger when the task is unclear, when group members seem expert, or when a person feels new to the group. It can be weaker when someone has time to think privately before answering.
Obedience involves more than simply liking authority. People often learn from childhood that teachers, parents, doctors, police officers, and managers have legitimate roles. In a pressured setting, a person may shift responsibility upward and tell themselves that the authority figure is accountable.
Small steps matter too. Agreeing to a minor request can make a larger request seem like the next step rather than a new decision. This process is sometimes called gradual commitment.
Distance changes behaviour as well. It is easier to carry out a harmful instruction when the affected person feels distant or unseen. These patterns help psychologists explain harmful actions without claiming that only cruel people cause harm.
Role studies point to the power of rules, uniforms, labels, and expectations. A role can guide what a person notices, what behaviour seems permitted, and how others respond to them. However, students should treat the Stanford Prison Experiment carefully.
The study had serious ethical problems, including distress and weak protection for participants. Critics argue that some participants may have acted according to what they believed the researchers wanted. This is called demand characteristics.
The study also used a small, unusual sample and cannot prove that every prison setting produces the same behaviour. Modern psychology gives more weight to evidence that can be repeated with safer methods and clearer controls.
These ideas appear in daily life. A student may laugh at a joke to avoid standing out. A friend group may spread a false claim because nobody checks it.
Online comments can make a viewpoint seem popular even when a small number of people posted repeatedly. In school, work, sport, and social media, it helps to pause before assuming that a majority is correct or that a confident person is qualified. When studying these topics, separate the cause being tested from the behaviour measured.
Notice whether a study used deception, whether participants could truly leave, and whether the findings apply beyond the laboratory. Ethical safeguards matter because useful knowledge never removes the duty to protect people from avoidable harm.