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Chapter 7: Social Influence and Group Processes

Unit VII – Social Influence and Group Processes (6 Marks)


7.1 Introduction

Humans are inherently social beings. Much of our behaviour is influenced by the groups we belong to and the people around us. This chapter explores the nature, formation, and types of groups, and examines how groups influence individual behaviour through processes like social loafing and group polarisation.


7.2 Nature and Formation of Groups

What is a Group?

A group is a collection of two or more individuals who interact with each other, share common goals, and perceive themselves as part of a collective unit.

Characteristics of a Group

CharacteristicDescription
InteractionMembers communicate and influence each other
Common goalsMembers share objectives or interests
NormsShared rules and expectations governing behaviour
RolesSpecific functions assigned to or expected of members
CohesivenessDegree of attraction and bonding among members
InterdependenceMembers depend on each other for goal achievement
Group identityMembers perceive themselves as belonging to the group

Why Do People Join Groups?

  • Security — groups provide safety and protection
  • Status — membership in certain groups confers prestige
  • Self-esteem — belonging enhances feelings of self-worth
  • Affiliation — satisfies the need for social contact and companionship
  • Goal achievement — groups can accomplish tasks individuals cannot
  • Knowledge and information — groups provide access to skills, expertise, and experience

Stages of Group Formation (Tuckman’s Model)

StageDescription
FormingMembers meet, learn about each other; uncertainty and politeness
StormingConflicts and disagreements arise; competition for roles and power
NormingNorms are established; cohesion develops; cooperation increases
PerformingGroup functions effectively; focus on goal achievement
AdjourningGroup disbands after goals are achieved; members may feel sadness
Tuckman's Stages of Group Formation Forming Orientation Introductions Storming Conflicts Power struggles Norming Cohesion Norms set Performing Productivity Goal focus Adjourning Disbanding Closure Group Maturity → Fig 7.1 – Tuckman's five stages of group development

7.3 Types of Groups

TypeDescriptionExample
Primary groupSmall, intimate, long-lasting; strong emotional bondsFamily, close friends
Secondary groupLarge, impersonal, goal-oriented; temporaryOffice team, class group
In-groupGroup one belongs to and identifies with“We” / “Us”
Out-groupGroup one does not belong to; often viewed differently“They” / “Them”
Formal groupStructured, defined roles, official rulesSchool committee, army unit
Informal groupUnstructured, spontaneous, based on shared interestsFriend circle, study group
Reference groupA group one uses as a standard for self-evaluationRole models, aspirational groups

7.4 Influence of Group on Individual Behaviour

7.4.1 Social Loafing

Social loafing is the tendency for individuals to exert less effort when working in a group than when working alone.

Causes:

  • Diffusion of responsibility — “someone else will do it”
  • Reduced identifiability — individual contributions are not tracked
  • Free-rider effect — some members rely on others to do the work
  • Sucker effect — hardworking members reduce effort when they notice others loafing

How to reduce social loafing:

  • Make individual contributions identifiable and accountable
  • Keep groups small
  • Assign specific, meaningful tasks to each member
  • Increase group cohesiveness and commitment

Example: In a school group project, some students do most of the work while others contribute little. This is social loafing in action.

7.4.2 Group Polarisation

Group polarisation refers to the tendency for group discussion to strengthen the initial inclination of group members — making their views more extreme.

  • If members initially lean toward a risky option, discussion makes them more risky
  • If members initially lean toward a cautious option, discussion makes them more cautious

Causes:

  • Social comparison — members compare themselves with others and shift toward the dominant position to gain approval
  • Informational influence — new arguments and information presented during discussion reinforce the prevailing view
  • Sense of group identity — identifying strongly with the group makes members adopt more extreme positions

Example: A jury that initially leans toward a guilty verdict may, after discussion, reach a more extreme (harsher) verdict than any individual juror would have reached alone.

Other Group Influence Phenomena

PhenomenonDescription
ConformityAdjusting one’s behaviour or thinking to match group norms (Asch’s line experiment)
ObedienceFollowing orders from an authority figure (Milgram’s experiment)
ComplianceAgreeing to a request without authority pressure
GroupthinkMembers suppress dissent and critical thinking to maintain group harmony; leads to poor decisions (Janis)
Social facilitationPerformance on simple/well-practised tasks improves in the presence of others
DeindividuationLoss of individual identity in a group; can lead to uninhibited behaviour (mob behaviour)
Group Influence on Individual Behaviour GROUP INFLUENCE Social Loafing Less effort in group Polarisation Views become extreme Conformity Match group norms Facilitation Better on easy tasks Groupthink Suppress dissent Obedience Follow authority Fig 7.2 – Ways in which groups influence individual behaviour

Key Terms Summary

TermMeaning
GroupTwo or more individuals who interact, share goals, and identify as a unit
Primary groupSmall, intimate, emotionally close (e.g., family)
Secondary groupLarge, impersonal, goal-oriented (e.g., office team)
In-group / Out-groupGroup one belongs to vs. group one does not
Social loafingReduced effort when working in a group
Group polarisationGroup discussion makes views more extreme
ConformityAdjusting behaviour to match group norms
GroupthinkSuppressing dissent to maintain group harmony
Social facilitationImproved performance on simple tasks in the presence of others

Practice Questions

Section A – Multiple Choice Questions (1 mark each)

Q1. Social loafing refers to:

(a) Working harder in a group   (b) Reduced effort in a group   (c) Leading a group   (d) Leaving a group

Answer

(b) Reduced effort in a group

Social loafing is the tendency for individuals to exert less effort when working in a group than when working alone, due to diffusion of responsibility and reduced identifiability.


Q2. Tuckman’s model of group formation includes all of the following stages EXCEPT:

(a) Forming   (b) Storming   (c) Competing   (d) Performing

Answer

(c) Competing

Tuckman’s five stages are: Forming, Storming, Norming, Performing, and Adjourning. “Competing” is not one of the stages.


Q3. Group polarisation means that group discussion:

(a) Creates balanced opinions

(b) Makes initially held views more extreme

(c) Reduces all disagreements

(d) Leads members to change their views completely

Answer

(b) Makes initially held views more extreme

Group polarisation is the tendency for group discussion to strengthen members’ initial inclinations — making cautious individuals more cautious and risky individuals more risky.


Q4. A family is an example of a:

(a) Secondary group   (b) Out-group   (c) Primary group   (d) Formal group

Answer

(c) Primary group

A family is a primary group — small, intimate, with strong emotional bonds and long-lasting relationships.


Q5. Groupthink is characterised by:

(a) Encouraging diverse opinions

(b) Suppressing dissent to maintain group harmony

(c) Increasing individual effort

(d) Reducing group size

Answer

(b) Suppressing dissent to maintain group harmony

Groupthink (identified by Irving Janis) occurs when group members prioritise consensus and harmony over critical thinking, leading to poor decision-making.


Section B – Short Answer Questions (2 marks each)

Q6. What is social loafing? Suggest two ways to reduce it.

Answer

Social loafing is the tendency of individuals to put in less effort when working collectively in a group compared to when working individually.

Two ways to reduce social loafing:

  1. Make individual contributions identifiable — when each person’s work can be tracked and evaluated separately, they are more likely to put in full effort (e.g., assigning specific tasks with individual accountability)

  2. Keep groups small — in smaller groups, each member’s contribution is more visible and important, reducing the opportunity for free-riding


Q7. Distinguish between primary and secondary groups.

Answer
FeaturePrimary GroupSecondary Group
SizeSmallLarge
RelationshipsIntimate, face-to-face, emotionalImpersonal, formal, functional
DurationLong-lasting, relatively permanentMay be temporary or goal-oriented
BasisPersonal bonds, love, affectionCommon interests or tasks
InfluenceShapes values, identity, personalityProvides specific skills or resources
ExamplesFamily, close friendsOffice team, political party, class

Q8. Explain group polarisation with an example.

Answer

Group polarisation is the phenomenon where group discussion causes members’ initial attitudes to become more extreme in the same direction.

If members start with a slightly risky attitude, discussion will make the group more risky (risky shift). If they start cautiously, discussion will make them more cautious (cautious shift).

Example: A group of students initially somewhat in favour of organising a protest against a school policy discuss the matter. After discussion, they become much more strongly in favour and decide to stage a large-scale demonstration. The discussion amplified their initial inclination rather than moderating it.

Reasons: Social comparison (wanting to align with the dominant view), informational influence (hearing supporting arguments reinforces the position), and group identity (wanting to represent the group’s values strongly).


Section C – Long Answer Questions (5 marks each)

Q9. Discuss the nature and formation of groups. Include Tuckman’s model of group development.

Answer

Nature of Groups:

A group is a collection of two or more individuals who:

  • Interact with each other regularly
  • Share common goals and interests
  • Have defined roles and norms
  • Perceive themselves as a collective unit
  • Are interdependent — each member’s actions affect others

Groups are distinct from mere aggregates (e.g., people in a queue) because group members have a shared identity and structured relationships.

Why people join groups: Security, self-esteem, affiliation, goal achievement, status, and access to information.

Tuckman’s Model of Group Development:

  1. Forming: The initial stage where members meet, get to know each other, and understand the group’s purpose. There is uncertainty and members are polite and cautious.

  2. Storming: Conflicts and disagreements emerge as members compete for roles, express different opinions, and challenge authority. This can be an uncomfortable but necessary stage.

  3. Norming: The group establishes shared norms, rules, and expectations. Cohesion develops, roles are clarified, and members begin cooperating effectively.

  4. Performing: The group functions at its best. Members work collaboratively toward goals, resolve conflicts constructively, and achieve high productivity.

  5. Adjourning: The group disbands after achieving its goals. Members may experience a sense of accomplishment along with sadness at the group’s end.

Not all groups pass through every stage smoothly — some may regress or get stuck at certain stages.


Q10. Explain how groups influence individual behaviour. Discuss social loafing and group polarisation in detail.

Answer

Groups exert powerful influence on individual behaviour through several mechanisms:

1. Social Loafing:

The tendency for individuals to put in less effort when working in a group than when working alone. This occurs because:

  • Diffusion of responsibility — the responsibility for the outcome is spread across all members, so no single person feels fully accountable
  • Reduced identifiability — individual contributions may not be separately evaluated
  • Free-rider effect — some members rely on others’ efforts

How to reduce social loafing: Make individual contributions identifiable, keep groups small, assign specific roles, set clear individual and group goals, and increase group cohesiveness.

2. Group Polarisation:

The tendency for group discussion to make members’ initial views more extreme. After discussion:

  • A slightly risky group becomes more risky (risky shift)
  • A slightly cautious group becomes more cautious (cautious shift)

Causes include:

  • Social comparison — members adjust their views to match or exceed the dominant position
  • Informational influence — new arguments supporting the prevailing view strengthen it
  • Group identity — members adopt more extreme positions to demonstrate loyalty

Other forms of group influence:

  • Conformity — adjusting behaviour to match group norms (demonstrated by Asch’s line experiment)
  • Groupthink — suppressing dissent and critical thinking to maintain harmony, leading to poor decisions
  • Social facilitation — improved performance on simple tasks in the presence of others

These phenomena demonstrate that being in a group fundamentally alters how individuals think and behave.


Section D – Competency-Based Questions (CBSE Pattern)

Q11. (Assertion–Reason)

Assertion (A): In large groups, individuals tend to put in less effort on collective tasks.

Reason (R): In large groups, individual contributions are difficult to identify, leading to diffusion of responsibility.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is NOT the correct explanation of A

(c) A is true but R is false

(d) A is false but R is true

Answer

(a) Both A and R are true and R is the correct explanation of A

This describes social loafing. In larger groups, individual contributions become less visible (reduced identifiability), and responsibility for the outcome is diffused among many members. This causes individuals to exert less effort than they would if working alone.


Q12. (Case Study)

A school assigns a group project to a team of six students. After a few weeks, the teacher notices that only two students are doing most of the work, while the other four are contributing minimally. When confronted, the four students say, “The others are already handling it — our part isn’t that important.”

(i) What phenomenon is being demonstrated?

(ii) Explain two causes of this phenomenon based on the case.

(iii) Suggest three strategies the teacher could use to address this problem.

Answer

(i) The phenomenon being demonstrated is social loafing — the tendency for individuals to exert less effort when working in a group than when working alone.

(ii) Two causes:

  1. Diffusion of responsibility — the four students feel that since others are “already handling it,” they don’t need to contribute. The responsibility for the project is spread across six people, reducing each individual’s sense of personal accountability.

  2. Free-rider effect — the four students are “free-riding” on the efforts of the two hardworking students. They benefit from the group’s output (grades) without contributing their fair share of effort.

(iii) Three strategies:

  1. Individual accountability — assign specific, clearly defined tasks to each student and evaluate each person’s contribution separately (e.g., individual marks for individual sections)

  2. Reduce group size — divide the group of six into smaller groups of two or three, where each member’s contribution is more visible and essential

  3. Peer evaluation — have group members rate each other’s contributions. This increases identifiability and social pressure to contribute, as each student knows their effort will be evaluated by their peers


Q13. (Source-Based)

Read the passage below and answer the questions:

“Irving Janis studied several foreign policy disasters in American history and concluded that they were partly caused by a phenomenon he called ‘groupthink.’ In groupthink, the desire for group consensus overrides members’ motivation to evaluate alternatives realistically. Members suppress their doubts, avoid voicing disagreements, and put pressure on dissenters to conform. The result is often a decision that no individual member would have made alone.”

(i) What is groupthink?

(ii) List two symptoms of groupthink described in the passage.

(iii) Why does groupthink lead to poor decisions?

(iv) Suggest two ways to prevent groupthink in groups.

Answer

(i) Groupthink is a psychological phenomenon that occurs in highly cohesive groups where the desire for consensus and harmony overrides members’ ability to think critically and evaluate alternatives realistically. It was identified by Irving Janis.

(ii) Two symptoms from the passage:

  1. Suppression of doubts — members avoid expressing their concerns or objections to maintain group harmony
  2. Pressure on dissenters — members who disagree are pressured to conform to the majority view, discouraging independent thinking

(iii) Groupthink leads to poor decisions because:

  • Alternative viewpoints are suppressed — the group does not consider a full range of options or potential risks
  • Critical evaluation is absent — members do not challenge assumptions or test ideas against evidence
  • Illusion of unanimity — silence is interpreted as agreement, creating a false sense that everyone supports the decision
  • As a result, the group may make a decision that is irrational, risky, or inappropriate — one that no individual would have made on their own

(iv) Two ways to prevent groupthink:

  1. Assign a “devil’s advocate” — designate one member to deliberately challenge proposals and raise counterarguments. This ensures critical examination of ideas even in a highly cohesive group.

  2. Encourage open discussion and dissent — the leader should actively invite different opinions, refrain from stating their own preference early, and create a safe environment where disagreement is welcomed rather than punished.