Human Relationships
View all topicsConformity
IB Psychology · 2027 Syllabus
Inquiry Question & Thinking Prompt
- If everyone in your friend group starts wearing a specific brand of shoes, do you buy them because you actually like them, or because you subconsciously fear being left out?
- Is it dangerous to teach children to always "follow the rules and do what everyone else is doing," or is that necessary to stop society from collapsing?
- Will people conform faster to a group of strangers they think are experts, or to a group of their closest friends who know absolutely nothing about the topic?
Learning Objective
The role of conformity in group behavior.
- IB Psychology Guide 2027
📖 Definition / Conceptual Understanding
Conformity is a type of social influence where an individual changes their attitudes, beliefs, or behaviors to align with the norms or expectations of a group in the absence of a direct request, yielding to real or imagined group pressures.
⚙️ Mechanism / Explanation
The Dual-Process Dependency Model (Deutsch and Gerard, 1955)Core Premise:Proposed by Morton Deutsch and Harold Gerard, the dual-process dependency model provides a theoretical framework to explain the fundamental psychological motivations behind why individuals yield to group pressure. The model posits that human beings are driven to conform by two distinct, parallel psychological needs: the need to be socially accepted and the need to be objectively correct.
- Normative Social Influence (NSI): The Need to Belong
- Mechanism: The fundamental human need for social acceptance and approval.
- Application: Individuals conform to the group's expectations to avoid social rejection, ridicule, or punishment.
- Outcome: NSI typically results in compliance—a superficial change where the individual publicly conforms to the group behavior but privately maintains their original beliefs.
- Informational Social Influence (ISI): The Need to be Right
- Mechanism: The fundamental human need to be objectively correct.
- Application: In ambiguous situations where the "correct" behavior is unclear, individuals look to the group as a source of accurate information, assuming the majority knows better.
- Outcome: ISI typically results in internalization—a deep, permanent change where the individual alters both their public behavior and private beliefs to match the group.
- Group Size: Conformity increases as the size of the majority increases, though it plateaus after a certain point (typically around 3-4 confederates).
- Unanimity: A unanimous majority exerts immense psychological pressure; however, the presence of even a single dissenting voice drastically reduces conformity rates.
- Task Difficulty: As a task becomes more difficult or ambiguous, conformity increases due to a shift from normative to informational social influence.
📌 Other Relevant Information
Pioneered by researchers like Solomon Asch and Muzafer Sherif, the study of conformity explores how group behavior is regulated and maintained through social influence. Deutsch and Gerard’s (1955) dual-process dependency model theorizes that individuals conform for two primary reasons: to be liked (Normative Social Influence) and to be right (Informational Social Influence). Conformity plays a vital role in group behavior by establishing social cohesion, enforcing cultural norms, and facilitating cooperation. However, the pressure to conform can also generate negative group phenomena, such as suppressing dissenting opinions, facilitating bystander apathy, or compelling individuals to act contrary to their internal moral compass simply to preserve group harmony.
🃏 Scenarios
Select a scenario to read it, then click the card to reveal the explanation. Each scenario feeds directly into a Paper 1B practice question.
🔬 Common Studies
These studies feed directly into Paper 2B practice questions.
📋 What is Required
Paper 1A— Short answer (4 marks)
Describe one study investigating conformity.
View mark scheme
9 marks: Clear description of conformity mechanisms and accurate study details.
Paper 1B— Scenario response (6 marks)
Discuss factors influencing conformity.
View mark scheme
22 marks: Detailed knowledge of group size, unanimity, or culture, with critical evaluation of supporting research.
💬 ATL Discussion & Theory of Knowledge
ATL Discussion Questions
Factual
What is the difference between normative and informational influence?
Conceptual
How do cultural dimensions dictate conformity levels?
Debatable
Are humans naturally predisposed to conform?
Link to Theory of Knowledge
If everyone in a room insists that a blue wall is actually green, and you eventually start believing it too, does "truth" actually exist, or is truth just whatever the majority of people agree on? Can a group consensus literally change human perception?
🔗 Link to Concepts
Select a concept to explore how it connects to this topic. These connections also feed into Paper 1C practice questions.
Link to Measurement
The Link: How can researchers accurately measure the difference between public compliance and private internalization?Application: Observing a behavioral shift (e.g., a participant choosing line 'A') is easily measurable. However, quantifying the internal cognitive state—whether the individual genuinely changed their mind (ISI) or is merely faking agreement to avoid awkwardness (NSI)—presents a severe methodological challenge.Must psychologists rely entirely on post-experiment debriefing interviews to measure the "truth" behind the conformity, and how vulnerable is this measurement to participants lying to protect their own intellectual pride?
🧠 Quick Quiz
What is conformity?
Which type of social influence occurs when people conform because they want to be liked and accepted by the group?
When an individual conforms because they believe the group has more accurate information, this is an example of:
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