Social Psychology: How Others Affect Us – Key Concepts and Studies

Social Psychology

Definition and Importance

• Social psychology is the scientific study of how people influence each other's behavior, beliefs, and attitudes, both positively and negatively.

• This field is critical because humans are inherently social beings, predisposed to forming interpersonal networks.

• Research by Robin Dunbar (1993) suggests that the typical size of human social networks is about 150 individuals.

Humans as a Social Species

Need-to-Belong Theory

• Proposed by Roy Baumeister and Mark Leary (1995), this theory posits that humans have a biologically-based need for interpersonal connections.

• Isolation, or even the threat of it, is associated with increased risk for anxiety, abnormal eating behaviors, reduced intelligence, and lower test performance.

Social Influence

• Social influences include processes such as obedience and conformity.

• Most social influence processes are adaptive, but can become maladaptive if followed blindly or unquestioningly.

• Critical evaluation of social influences is essential.

Social Comparison Theory

Evaluating Ourselves Through Others

• We assess our abilities and beliefs by comparing ourselves to others.

• Upward social comparison: Comparing ourselves to those we perceive as superior.

• Downward social comparison: Comparing ourselves to those we perceive as inferior.

• Both types of comparison can enhance our self-concept.

Social Contagion

Spread of Behaviors and Beliefs

• In ambiguous situations, we often look to others to determine what to believe and how to act.

• Mass hysteria is a contagious outbreak of irrational behavior (e.g., UFO sightings, windshield pitting).

• Urban legends are another example of social contagion, where beliefs or stories spread rapidly through social groups.

Conformity

Yielding to Group Pressure

• Conformity is the tendency to alter behavior as a result of group pressure.

• Solomon Asch's experiments in the 1950s demonstrated how individuals conform to group judgments, even when the group is clearly wrong.

Social Influences on Conformity

• Unanimity in the group increases conformity.

• Conformity decreases if at least one other person disagrees with the majority.

• The effect of group size plateaus at about five or six people.

Differences in Conformity

• Low self-esteem increases likelihood of conformity.

• Collectivist cultures (e.g., many Asian cultures) show higher conformity than individualist cultures (e.g., Canada, USA).

• No significant sex differences in conformity rates.

Deindividuation

Loss of Self-Identity in Groups

• Deindividuation is the tendency to engage in atypical behavior when stripped of usual identity.

• Anonymity and lack of personal responsibility promote deindividuation, making individuals more susceptible to social influence.

• Examples include wearing masks or being part of large crowds, which can lead to behaviors such as rioting (e.g., Vancouver Canucks riot, 2011).

Stanford Prison Study

Role Adoption and Behavior

• Philip Zimbardo (1973) investigated whether abusive prison conditions were due to personalities or situational roles.

• Participants were randomly assigned as prisoners or guards; prisoners were dehumanized and referred to by numbers.

• Guards quickly became cruel, and prisoners rebelled; the study was halted after six days due to ethical concerns.

• Criticisms include demand characteristics, selection bias, experimenter involvement, and replication issues.

Groupthink

Group Decision-Making Flaws

• Groupthink is the emphasis on group unanimity at the expense of critical thinking.

• It can lead to overconfidence and poor decisions, as dissenting opinions are suppressed.

Table: Symptoms of Groupthink

Symptom	Example
An illusion of the group’s invulnerability	“We can’t possibly fail!”
An illusion of the group’s unanimity	“Obviously, we all agree.”
An unquestioned belief in the group’s moral correctness	“We know we’re on the right side.”
Conformity pressure	“Don’t rock the boat!”
Stereotyping of the out-group	“They’re all morons.”
Self-censorship	“I suspect the group leader’s idea is stupid, but I’d better not say anything.”
Mindguards	“Oh, you think you know better than the rest of us?”

Cults

Extreme Group Influence

• Cults are groups with intense, unquestioning devotion to a single cause.

• Groupthink is promoted through persuasive leadership, isolation from outsiders, discouraging questions, and gradual indoctrination.

Cult Myths

• Myth: Cult members are emotionally disturbed. Fact: Most are normal; leaders may be mentally ill.

• Myth: Cult members are brainwashed into unthinking zombies. Fact: Techniques do not permanently change beliefs.

Obedience

Following Authority

• Obedience involves adhering to orders from higher authority (vertical transmission), as opposed to conformity (horizontal transmission among peers).

• Obedience is essential for societal functioning (e.g., obeying traffic laws), but can be dangerous if people stop questioning authority.

Stanley Milgram's Obedience Studies

The Milgram Paradigm

• Milgram designed experiments to test obedience to authority, inspired by questions about the Holocaust.

• Participants (“teachers”) were instructed to administer shocks to “learners” (confederates) for incorrect answers, with shock intensity increasing each time.

• Despite the learner’s protests (including claims of a heart condition), many participants continued to obey the experimenter’s instructions.

Key Findings

• Obedience decreased as the distance between teacher and experimenter increased.

• Obedience increased as the distance between teacher and learner increased.

• Compliance was not related to sadism; predictors of disobedience included higher moral reasoning and lower authoritarianism.

• No significant sex or cultural differences in obedience rates.

Bystander Nonintervention

Why People Fail to Help

• People sometimes fail to help those in need, as illustrated by the Kitty Genovese case.

• Pluralistic ignorance: Assuming no one else perceives the situation as an emergency.

• Diffusion of responsibility: The more people present, the less each feels personally responsible for helping.

Social Loafing

Reduced Effort in Groups

• Social loafing occurs when individuals exert less effort in groups than when alone.

• It is partly due to diffusion of responsibility and is more common in Western cultures.

• Making individual contributions identifiable can reduce social loafing.

Aggression

Causes and Types

• Aggression is behavior intended to harm others, physically or verbally.

• Linked to interpersonal provocation, frustration, media influences, aggressive cues, arousal, alcohol and drugs, and temperature.

Differences in Aggression

• Certain personality traits (e.g., negative emotions, impulsivity) increase aggression.

• Males are more likely to engage in physical aggression; females more often use relational aggression (e.g., spreading rumors, social manipulation).

• Testosterone levels and cultural factors (e.g., culture of honour) also influence aggression.