What three famous psychology experiments reveal about judgment, authority and responsibility
You are sitting in a meeting when someone proposes a decision you think is wrong. Before you speak, several people agree. The person leading the meeting seems confident, and the conversation moves on. You begin to wonder whether you have misunderstood something. Perhaps raising a concern will make you seem difficult. Perhaps someone else will say it.
You leave without speaking, even though your concern remains.
From outside the room, the answer might seem obvious: if something is wrong, say so. Inside it, speaking has acquired a social cost.
We often predict our behaviour from our values. If we care about fairness, we expect to challenge unfairness. If we are compassionate, we expect to help. Yet knowing what we believe and acting on it under pressure are different psychological tasks.
Three famous programmes of research explored different parts of that gap. Their findings help explain why judgment, refusal and responsibility can become difficult—and how other people can sometimes make them easier.
Asch: the difficulty of standing alone
Imagine looking at a line and being asked which of three other lines matches its length. The answer seems clear. Then everyone before you chooses a different one. When your turn comes, you must give your answer aloud.
This was the situation Solomon Asch created in his experiments during the 1950s. The genuine participant did not know that the other group members were collaborators instructed to give the same incorrect answer on selected trials.
Across those critical trials, participants agreed with the incorrect majority roughly a third of the time. This describes responses across trials, rather than a third of participants always giving in. There were also many independent, correct responses.
The result is striking because the group offered no new evidence. Its influence came from placing the participant in disagreement with everyone else.
But the most useful finding may be what happened when that isolation changed. Having one other person give the correct answer substantially reduced conformity. A 2023 replication also found substantial conformity in the line task, even when correct answers were financially rewarded.
Asch’s research gives us a reason to pay attention to how disagreement is received. A workplace discussion is more complicated than matching lines, but the social dilemma can feel familiar: do I say what I think, or protect my place in the room?
We may imagine independence as something a person either possesses or lacks. These findings suggest that the support available in the moment matters too. Someone who says, “I have a concern about that,” may help another person express a judgment they were struggling to voice.
Milgram: the difficulty of refusing
In Stanley Milgram’s research, participants entered what appeared to be a study of learning and memory. Their task was to administer increasingly powerful electric shocks when another person gave incorrect answers.
The shocks were simulated, and the other person was a collaborator. The procedure was designed to convince participants that the shocks were real. An experimenter instructed them to continue when they hesitated.
In the condition reported in Milgram’s 1963 paper, 26 of 40 participants continued to the highest setting, labelled 450 volts. Fourteen stopped. Many participants showed visible distress.
It is easy to turn this into a simple claim that people blindly obey authority. Later analyses make the explanation more complicated. Some researchers argue that participants continued because they believed they were contributing to worthwhile science. Others emphasise several processes, including trust that the experimenter would prevent serious harm. The interpretation remains debated.
That complexity matters because it brings the problem closer to ordinary life. We can feel uncomfortable while also believing that someone more knowledgeable has assessed the situation. We can question a particular action while remaining committed to the purpose behind it.
Trust in expertise is often sensible. The difficulty arises when reassurance closes down examination of a concern.
“What makes this safe?” and “What would cause us to stop?” are useful questions to bring into such a conversation. They ask for the reasoning behind confidence and make room for judgment alongside trust.
Milgram’s study cannot tell us what percentage of people would obey harmful instructions in every setting. It does invite us to consider how we would respond when continuing is presented as legitimate, expected or necessary.
Darley and Latané: the difficulty of taking responsibility
In a 1968 experiment, John Darley and Bibb Latané placed participants in separate rooms for an apparent discussion over an intercom. During it, they heard what sounded like another participant experiencing a seizure.
Some believed they were the only listener. Others believed additional people could also hear the emergency. When participants thought others were present, they were less likely to report it promptly. The researchers interpreted this through diffusion of responsibility: someone else might act.
The familiar conclusion is that crowds fail to help. Later research gives a more encouraging—and more precise—picture.
A study of CCTV footage examined 219 public conflicts across the United Kingdom, the Netherlands and South Africa. In approximately nine out of ten incidents, at least one bystander intervened to help. More bystanders were associated with a greater likelihood that someone would intervene.
These findings concern different settings and different questions. Whether a particular individual acts is different from whether anyone in a group acts. The presence of others can complicate individual responsibility while also providing more potential helpers.
Outside emergencies, responsibility can become unclear in quieter ways. A team knows there is a problem, but each member assumes another department is handling it. Several friends know someone is struggling, but each expects another to check in.
A useful response is to turn shared concern into a clear commitment: “I will contact them today,” or “Who is following this up?”
What helps us act on our judgment?
The experiments examine different processes, but together they offer a useful way to reflect on the gap between intention and action. Group agreement can make disagreement difficult. Trust in authority can make refusal uncomfortable. The presence of others can leave responsibility unclear.
Understanding these pressures does not remove responsibility. It helps us examine what influenced a decision and what might support a different response next time.
The practical implications are suggestions drawn from these themes, rather than a complete method tested by the three studies. We can invite independent views before agreement builds. We can ask what evidence supports reassurance. We can make responsibilities explicit rather than assume someone else has taken them.
We can also pay attention to our response when another person speaks first. A concern does not have to be correct to deserve consideration. Listening gives us a chance to examine it.
The people who disagreed, stopped and helped belong in the story too. Social situations can create pressure, but they can also provide support. Our behaviour becomes part of the situation another person is trying to navigate.
Return to that meeting. The conversation is moving on, and someone finally says, “I’m not comfortable with this.”
The next response matters. We could dismiss them, stay silent, or say, “Let’s hear the concern.”
We cannot know with certainty what we would have done in a famous experiment. We can decide how to respond when someone raises a concern in the room we are in.
References
Asch, S. E. (1955). Opinions and social pressure. Scientific American, 193(5), 31–35.
Franzen, A., & Mader, S. (2023). The power of social influence: A replication and extension of the Asch experiment. PLOS ONE, 18(11), e0294325.
Milgram, S. (1963). Behavioral study of obedience. Journal of Abnormal and Social Psychology, 67(4), 371–378.
Haslam, S. A., Reicher, S. D., Millard, K., & McDonald, R. (2015). ‘Happy to have been of service’: The Yale archive as a window into the engaged followership of participants in Milgram’s ‘obedience’ experiments. British Journal of Social Psychology, 54(1), 55–83.
Hollander, M. M., & Turowetz, J. (2018). Multiple compliant processes: A reply to Haslam and Reicher on the engaged followership explanation of ‘obedience’ in Milgram’s experiments. British Journal of Social Psychology.
Darley, J. M., & Latané, B. (1968). Bystander intervention in emergencies: Diffusion of responsibility. Journal of Personality and Social Psychology, 8(4), 377–383.
Philpot, R., Liebst, L. S., Levine, M., Bernasco, W., & Lindegaard, M. R. (2020). Would I be helped? Cross-national CCTV footage shows that intervention is the norm in public conflicts. American Psychologist, 75(1), 66–75.
