A complete visual revision system for social thought, communication, attitudes, helping, influence, aggression, groups, intergroup relations and real-world applications.
Social psychology पूछती है: वास्तविक, कल्पित या implied दूसरे लोगों की मौजूदगी हमारे विचार, भावना और व्यवहार को कैसे बदलती है?
Try “attribution”, “conformity”, “aggression” or “crowding”.
Nature, scope, history and levels of explanation
Scientific study of how people’s thoughts, feelings and behaviours are influenced by the actual, imagined or implied presence of others.
दूसरे लोग सामने हों, केवल मन में हों, या social norms के रूप में implied हों—तीनों social influence हैं।
Empirical, theory-driven and often experimental; examines person × situation × culture, conscious and automatic processes, individuals and groups.
Social perception/cognition, self, attitudes, relationships, helping, aggression, groups, influence, prejudice and applications.
Field theory, dissonance, sociobiology, psychodynamic and social cognition
Behaviour is a function of the person and environment within the present life space. Valences attract/repel; vectors show direction and strength.
व्यवहार को केवल “व्यक्ति ऐसा है” कहकर नहीं समझेंगे; उस समय का psychological environment भी जोड़ेंगे।
Dynamic life space; person and environment are interdependent.
Inconsistency among cognitions creates aversive tension and motivates reduction (Festinger).
Evolutionary selection shapes tendencies through inclusive fitness, kin selection and reciprocity—not rigid genetic determinism.
Unconscious conflict, defence, identification and group projections shape social relations.
Schemas, attention, memory, heuristics and controlled/automatic processing construct social reality.
Signals, impressions and meaning in context
Content, framing, speech acts and conversational norms. Meaning depends on shared language, roles and context.
Face, gaze, gesture, posture, touch, distance and paralanguage (tone, pitch, pace). Cues are probabilistic, not lie detectors.
Asch: central traits reorganize the whole impression; primacy often dominates. Halo effect generalizes one positive feature.
| Process | Shortcut | Possible error |
|---|---|---|
| Schema-based perception | Use organized prior knowledge | Confirmation and expectancy effects |
| Stereotyping | Apply group beliefs to person | Ignore individual information |
| Primacy | Weight early information | Later correction is insufficient |
| Halo / horn | One good/bad quality colours the whole | False global consistency |
| Thin slices | Rapid judgment from brief behaviour | Can be informative but context-sensitive |
Models, dimensions and classic biases
Low consensus + high consistency + low distinctiveness: “It is something about this person.”
| Framework | Question/dimensions | Use |
|---|---|---|
| Heider | Internal/dispositional vs external/situational cause | Naïve psychology |
| Jones–Davis | Does an intentional action reveal a disposition? Choice, unexpected/noncommon effects, social desirability | Correspondent inference |
| Kelley | Consensus, consistency, distinctiveness | Covariation across persons, times, entities |
| Weiner | Locus, stability, controllability | Achievement causes, expectations and emotions |
Overweight disposition and underweight situation when explaining others.
Own action → situation; others’ action → disposition (not universal).
Success → internal; failure → external, protecting self-esteem.
| More biases | Meaning |
|---|---|
| Just-world belief | Assume outcomes are deserved; can lead to victim blaming |
| False consensus | Overestimate how many share our beliefs/behaviour |
| Ultimate attribution error | Intergroup version: outgroup negative acts internal, positive acts exceptional/external |
| Defensive attribution | Explain threat to reduce perceived personal vulnerability |
Structure, functions, behaviour and change
Feelings toward object
Action tendency/past behaviour
Beliefs and knowledge
Knowledge organizes reality; utilitarian gains rewards; ego-defensive protects self; value-expressive communicates identity.
Prediction improves when attitude is specific, accessible, strong, based on experience and social control is low. TPB adds subjective norm and perceived behavioural control.
| Change mechanism | Core idea | Best-known condition |
|---|---|---|
| Cognitive dissonance | Resolve inconsistency among cognitions/action | Free choice, commitment, effort, low justification |
| Self-perception (Bem) | Infer attitude by observing own behaviour | Weak/ambiguous prior attitude |
| Learning | Conditioning, reinforcement and modelling | Affective association and repeated pairing |
| Balance (Heider) | Seek consistent P–O–X relations | Imbalanced triad motivates a relation change |
| Persuasion | Source, message, recipient and route | Elaboration and resistance determine durability |
ELM, Yale approach and resistance to influence
Careful scrutiny of argument quality. Strong arguments can produce durable, accessible attitudes resistant to counter-persuasion; weak arguments may backfire.
| Element | Influence variables | NET/JRF anchor |
|---|---|---|
| Source | Expertise, trustworthiness, attractiveness/similarity | Credibility; sleeper effect when source discounting fades faster than message memory |
| Message | Argument strength, one/two-sidedness, order, repetition, fear + efficacy | Fear without doable response may trigger defence |
| Recipient | Involvement, need for cognition, prior knowledge, mood, forewarning | Motivation × ability determines elaboration |
| Context/channel | Distraction, speed, modality, social norms | Cues can affect route or bias processing |
Expose a person to weak attacks plus refutations, building “cognitive antibodies” against stronger persuasion.
Advance knowledge of persuasive intent may increase counterarguing—but sometimes increases compliance if resistance resources are low.
Why people help, and where intervention breaks down
Batson: empathic concern can produce genuinely other-focused helping even when escape is easy.
Helping can reduce one’s own sadness/guilt; mood repair is the motive.
Kin selection, reciprocal altruism and cost–reward analysis can make helping adaptive or rewarding.
| Barrier | Mechanism | Countermeasure |
|---|---|---|
| Pluralistic ignorance | Others look calm, so event is judged non-emergency | State clearly what is happening |
| Diffusion of responsibility | Each assumes someone else will act | Assign one person directly |
| Evaluation apprehension | Fear of looking foolish/wrong | Normalize checking and small first actions |
| Audience inhibition | Public presence suppresses intervention | Build helping norms and competence |
Social facilitation, loafing and deindividuation
Presence increases arousal → dominant response. Easy/well-learned improves; difficult/novel worsens (Zajonc).
Individual effort falls when contributions are pooled/hidden. Ringelmann effect; motivation and coordination losses.
Reduced self-awareness/accountability under anonymity and group immersion; behaviour follows salient group norms.
| Phenomenon | Increases when… | Reduced by… |
|---|---|---|
| Facilitation impairment | Task is complex; evaluation/distraction high | Practice and manageable audience |
| Social loafing | Output unidentifiable, task dull, group large, contribution dispensable | Identifiability, meaningful task, small cohesive group, unique contribution |
| Deindividuation | Anonymity, arousal, low accountability | Self-awareness and individual accountability |
Development, structure, cohesion and decision traps
Norms prescribe behaviour; roles divide functions; status creates hierarchy; cohesion binds members and magnifies norms.
Discussion shifts average tendency toward a more extreme initial direction via persuasive arguments and social comparison.
Premature consensus under high cohesion, insulation, directive leadership and stress; symptoms include unanimity illusion and self-censorship.
Sum member outputs; e.g., total effort.
Average individual judgments.
Best member’s solution can determine success.
Performance limited by weakest member.
Peer pressure, classic studies and compliance techniques
A unanimous majority may pressure a participant toward an obviously wrong answer; one dissenter sharply reduces conformity.
| Influence | Immediate request comes from… | Mechanism / classic study |
|---|---|---|
| Conformity | Group norm/majority | Normative (belong) or informational (be correct); Sherif, Asch |
| Peer pressure | Similar-status peers | Belonging, identity, approval and norm uncertainty |
| Compliance | Another person’s request | No formal authority required |
| Obedience | Legitimate authority’s command | Milgram; agentic framing, gradual commitment, proximity and institutional legitimacy |
Small accepted request → larger related request; consistency/self-perception.
Large refused request → smaller target request; reciprocal concession.
Secure commitment, then reveal hidden cost; commitment persists.
Improve offer before response; reciprocity/contrast.
Limited availability raises perceived value and reactance.
Gift/favour creates felt obligation to return.
French–Raven bases, threatened freedom and minority influence
| Reward | Can provide desired outcome |
| Coercive | Can punish/remove reward |
| Legitimate | Recognized role/right |
| Expert | Knowledge/skill |
| Referent | Identification/admiration |
| Informational | Persuasive content/evidence |
When a valued freedom seems threatened, motivation arises to restore it—resistance, opposite choice or greater liking for the forbidden option.
बहुत controlling message “आपको यही करना ही होगा” freedom threat बन सकता है और उल्टा resistance बढ़ा सकता है।
A consistent, committed but flexible minority can stimulate deeper processing and private conversion—especially without appearing rigid/self-serving.
Forms, theories, determinants and prevention
Person inputs and situation inputs alter affect, arousal and cognition; appraisal determines thoughtful or impulsive action.
Primary goal is harm, often anger-driven.
Harm is a means to another goal.
Overt physical/verbal action toward target.
Rumours, exclusion or covert social harm.
| Theory | Core proposition | Exam update |
|---|---|---|
| Frustration–aggression (Dollard et al.) | Frustration produces aggression drive | Original “inevitable” claim too strong; frustration is one trigger |
| Cognitive neoassociation (Berkowitz) | Aversive events create negative affect and linked fight/flight associations | Cues and interpretation shape outcome; weapons effect |
| Social learning (Bandura) | Aggression learned through observation, reinforcement and expectancies | Bobo doll; self-efficacy and moral disengagement |
| Excitation transfer (Zillmann) | Residual arousal from one source intensifies later response | Misattributed arousal |
| General Aggression Model | Person + situation → internal state → appraisal/decision → action | Integrative, cyclical model |
Classic styles, contingency and contemporary approaches
Leader centralizes decisions. Fast/control useful in emergencies; may lower autonomy and increase dependence/aggression.
Participation and discussion. Often supports satisfaction, ownership and quality when time/skill permit.
Minimal direction. Can work with highly expert self-managing teams; otherwise role ambiguity and low coordination.
| Approach | Key dimensions/proposition | Effectiveness condition |
|---|---|---|
| Trait | Individual qualities such as intelligence, integrity, drive, emotional stability | Traits predict emergence imperfectly; context matters |
| Behavioural | Initiating structure vs consideration (Ohio); task vs employee orientation (Michigan) | Both task and relationship behaviours can matter |
| Fiedler contingency | Low LPC task-oriented; high LPC relationship-oriented; style relatively fixed | Match style to situational favourableness (relations, structure, power) |
| Path–goal (House) | Directive, supportive, participative, achievement-oriented | Clarify path and remove obstacles based on followers/task |
| Situational leadership | Directing, coaching, supporting, delegating | Adapt to follower readiness/development |
| Transactional | Contingent reward, management-by-exception | Clarifies exchange and performance |
| Transformational | Idealized influence, inspiration, intellectual stimulation, individualized consideration | Builds meaning and change beyond exchange |
| LMX | Leader forms different-quality dyadic exchanges | High-quality exchange helps; inequitable in/out groups can harm |
Minimal groups, social identity, deprivation and realistic conflict
| Theory/study | Mechanism | Prediction |
|---|---|---|
| Minimal Group Paradigm (Tajfel) | Arbitrary categorization alone | Ingroup favouritism can emerge without history/competition |
| Social Identity Theory | Social categorization → identification → comparison; seek positive distinctiveness | Self-concept partly derives from group memberships |
| Relative Deprivation | Perceived discrepancy between deserved and obtained outcomes | Egoistic = personal; fraternal/collective = group-based grievance |
| Realistic Conflict Theory | Competition over scarce, valued resources | Hostility rises; cooperative superordinate goals reduce it |
| Robbers Cave (Sherif) | Camp groups competed, then had to cooperate | Contact alone insufficient; interdependence mattered |
Stereotype = belief; prejudice = evaluation/feeling; discrimination = behaviour. They are related but not identical.
Best outcomes with equal status, cooperative interdependence/common goals, institutional support and meaningful interaction; friendship potential helps.
Balance, equity and social exchange theories
Balanced triads have an even number of negative relations (0 or 2). Imbalance motivates changing a sentiment/relation or reinterpreting it.
Perceived inequity creates tension; people may alter inputs/outcomes, cognitions, comparison person or relationship.
| Theory | Decision rule | Key terms |
|---|---|---|
| Balance theory | Prefer cognitively consistent sentiment/unit relations | P (person), O (other), X (object) |
| Equity theory (Adams) | Compare outcome/input ratios, not simply equal outcomes | Underreward and overreward inequity |
| Social exchange (Thibaut & Kelley) | Outcome = rewards − costs | Comparison level (satisfaction); CLalt (dependence/stability) |
| Interdependence | Each person’s outcomes depend on both partners’ choices | Transformation, mutual dependence, commitment |
Use social principles to diagnose and improve real settings
Risk perception, social norms, self-efficacy, planned behaviour, adherence, stigma and support shape prevention and illness adjustment. Interventions combine information with feasible skills/context.
Descriptive/injunctive norms, identity, convenience, defaults, feedback and collective efficacy influence conservation. Study noise, heat, place attachment and restorative settings.
Eyewitness memory is reconstructive; leading questions and post-event misinformation matter. Lineup fairness, confidence timing, confession pressure, juror bias and group deliberation are key.
| Concept | Meaning | Critical distinction |
|---|---|---|
| Personal space | Portable, invisible boundary regulating interaction | Varies with culture, relationship, gender, status and context |
| Density | Objective number of people per unit space | Physical measure |
| Crowding | Subjective experience of insufficient space/control/privacy | Psychological state; density need not feel crowded |
| Territoriality | Claiming, marking and defending a relatively fixed space | Primary (home), secondary (regular desk), public (temporary seat) |
Overstimulation, behavioural constraint, loss of control and unwanted interaction. Effects depend on control, predictability, design and social support.
Increase perceived control, privacy options, clear territories, wayfinding, access to nature, flexible spacing and quieter recovery zones.
NET/JRF-style checks; answer before reading feedback
Foundations → theories → perception/communication → attribution → attitude/persuasion.
Helping → group performance/dynamics → influence/power → aggression → leadership.
Intergroup identity/conflict → balance/equity/exchange → health, environment, law and space.
Research, content development and hosting all carry real costs. If this work has supported your preparation, a voluntary contribution helps it keep growing.
Support ClassRoom Thinker →Every contribution is voluntary and directly supports the platform.Found an error, noticed something unclear, or have a useful idea? Educators, writers, designers and developers are always welcome to reach out.
Corrections, suggestions and genuine collaboration are always welcome.