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Conformity to majority influence

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Would you give an answer you knew was wrong, just because everyone else did? Solomon Asch found many people would.

Why we conform

Normative influence: conforming to fit in and be accepted, and to avoid being rejected or laughed at.
Informational influence: conforming because we think the group knows better, especially when the task is hard or unclear.
Asch (1951) asked male American students to match line lengths in a group where the other members were confederates who sometimes gave the same wrong answer. Participants conformed on about a third of these critical trials, and about 75% conformed at least once, even though the right answer was obvious.

Situational factors

Group size: conformity increases as the majority grows, up to about three or four people, then levels off.
Unanimity: if just one other person disagrees with the majority, conformity drops sharply.
Task difficulty: when the task is harder, people conform more (informational influence).
Privacy: people conform less when they can give their answer privately (in writing) rather than out loud.

Personality factors

Locus of control: people with an internal locus of control (believing they control their own lives) conform less than those with an external locus of control.
Self-esteem and confidence: people with high self-esteem or confidence in their ability tend to conform less.
Need for approval: people who strongly want to be liked conform more.
Age: resistance to peer pressure tends to grow during adolescence (Steinberg and Monahan, 2007).
Culture: people from collectivist cultures tend to conform more than those from individualist cultures.
Worked example

In an Asch-style study, one confederate starts giving the correct answer. What would you expect to happen to the participant's conformity, and why?

  1. The majority is no longer unanimous.
  2. The participant has social support and feels less alone.

Answer: Conformity would drop sharply, because the majority is no longer unanimous and the participant has an ally.

Key idea

We conform to fit in (normative) or because we think others know best (informational). Situational factors: group size, unanimity, task difficulty, privacy. Personality factors: locus of control, self-esteem, need for approval, age and culture. Asch found high conformity even on an easy task.

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