Social Influence: Conformity (College Board AP® Psychology): Study Guide

Conformity & social influence

• Conformity is the modification of behavior or beliefs to align with the views, actions, or expectations of a group

• Conformity is distinct from obedience as:

  • conformity involves responding to implicit social pressure from peers

  • obedience involves complying with explicit directives from an authority figure

• Conformity is distinct from persuasion as:

  • persuasion involves a deliberate attempt to change another's attitudes through communication

  • conformity involves alignment with group norms without necessarily any explicit message being sent

• Conformity can be:

  • public compliance: changing outward behavior to match the group while privately disagreeing

    • E.g. voting with the group in a meeting while privately thinking the decision is wrong

  • private acceptance: genuinely changing private beliefs as a result of group influence

    • E.g. coming to genuinely believe the group's position after hearing their arguments

• Both normative and informational social influence drive conformity

Asch's conformity experiments

Aim

• Solomon Asch (1951) investigated whether individuals would conform to a clearly incorrect group judgment on a simple perceptual task

• He aimed to understand when people abandon accurate perceptions to align with a unanimous but incorrect group

Procedure

• Participants: male college students, tested individually alongside a group of confederates (actors posing as participants)

• Task: participants were shown a standard line and three comparison lines and asked to identify which comparison line matched the standard in length

  • The correct answer was always unambiguous

• Design:

  • On neutral trials, confederates gave the correct answer

  • On critical trials, all confederates unanimously gave the same incorrect answer before the real participant responded

  • The real participant always answered last or second-to-last, after hearing all confederates give the wrong answer

• Baseline condition: when participants completed the task alone (no confederates), the error rate was less than 1%, confirming the task was genuinely easy

Findings

• On critical trials:

  • approximately 32% of responses were conforming (incorrect) answers

    • participants went along with the group despite the answer being obviously wrong

  • approximately 75% of participants conformed at least once across the critical trials

  • approximately 25% of participants never conformed at any point

• When interviewed afterward:

  • some participants who had conformed reported genuine perceptual doubt

  • others reported knowing the group was wrong but conforming to avoid standing out or appearing foolish

  • this distinction maps onto informational influence (genuine doubt) vs normative influence (social pressure)

Factors affecting conformity

• Asch's follow-up studies systematically varied the conditions to identify what increases or decreases conformity:

• The ally effect is one of Asch's most significant findings:

  • when just one confederate gave the correct answer, conformity rates fell from approximately 32% to approximately 5%

  • this demonstrates that it is unanimity, not group size, that is the most powerful driver of normative conformity

• A single dissenting voice can dramatically reduce social pressure on others in a group

Ethical evaluation of Asch's research

• Asch's conformity experiments produced valuable evidence about the conditions under which people conform to group pressure

• However, it raises several significant ethical concerns when evaluated against contemporary APA guidelines

Deception

• Participants were not informed they were in a study about conformity

  • They were deceived about the true nature of the experiment and the role of the confederates

• By contemporary APA standards, full informed consent is required before participation, meaning participants must know what they are agreeing to

• Participants could not give meaningful informed consent because the deception was fundamental to the design

Psychological distress

• Some participants experienced genuine distress and self-doubt during the experiment, particularly those who conformed against their own better judgment

• Modern ethics requires that participants are protected from unnecessary psychological harm

• Deliberate induction of self-doubt and social discomfort requires careful ethical justification

Right to withdraw

• The social pressure created by the experimental situation may have made it difficult for participants to feel they could freely withdraw

• While no one explicitly told participants to continue, the design itself created implicit pressure to remain, which compromises the principle of voluntary participation

Debriefing

• Asch did debrief participants fully after the study, explaining the deception and the true purpose of the research

• Debriefing partially mitigates the ethical concern, as participants were not left with false beliefs about themselves or the study

Scientific value

• Despite the ethical issues, Asch's research produced foundational knowledge about the conditions under which people conform

  • It has major implications for understanding jury decision-making, groupthink, and social pressure in everyday life

• Scientific value does not override ethical requirements, but it is part of the cost-benefit analysis that ethics committees use to evaluate research