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Social Influence

Module 56

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Social Psychology

Social influence Conformity and Obedience

Group Influence

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Social Influence

The greatest contribution of social psychology is its study of attitudes, beliefs,

decisions, and actions and the way they are molded by social influence.

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Conformity & Obedience

Behavior is contagious, modeled by one followed by another. We follow the

behavior of others to conform.

Other behaviors may be the expression of compliance (obedience) toward authority.

Conformity Obedience

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The Chameleon Effect

Conformity: adjusting one’s behavior or thinking to coincide with a group

standard (Chartrand & Bargh, 1999).

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Group Pressure & Conformity

Suggestibility is a subtle type of conformity– adjusting our behavior or thinking toward some group standard.

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Group Pressure & Conformity

Influence resulting from one’s willingness to accept others’ opinions about reality.

Asch’s conformity experiment (1955)

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Conditions that Strengthen Conformity

1. One is made to feel incompetent or insecure.

2. The group has at least three people.3. The group is unanimous.4. One admires the group’s status and

attractiveness.5. On has no prior commitment to response.6. The group observes one’s behavior.7. One’s culture strongly encourages respect

for social standard.

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Reasons for Conformity

Normative Social Influence: influence resulting from a person’s desire to gain approval or

avoid rejection. Respecting normative behavior, because price may be severe if not followed.

Informative Social Influence: The group may provide valuable information, only

stubborn people will never listen to others.

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Informative Social Influence

Baron and colleagues (1996) made students do an eyewitness identification

task. If the task was easy (lineup exposure 5 sec.) conformity was low compared to

difficult (1/2 sec. exposure) task.

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Informative Social Influence

Baron et al., (1996)

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Obedience

People comply to social pressures. But

how would they respond to outright

command?

Stanley Milgram designed a study that

investigated the effects of authority on

obedience.

Stanley Milgram(1933-1984)

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Milgram’s Study

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Milgram’s Study: Results

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Individual Resistance

A third of individuals in Milgram’s study resisted social coercion.

An unarmed individual single-handedlyChallenged a line of tanks at Tiananmen

Square.

What about the officers at Abu Gharib?

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Is authority always right?9/11: Morgan Stanley – Ray Rescorla - a

hero because he did NOT obey authority -- 2700 lives were saved.

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All but six of Morgan Stanley's 2700 workers survived.  Richard Rescorla was one of the lost six.

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Lessons from the Conformity and Obedience Studies

In both Ash's and Milgram's studies participants were pressurized between

following their standards and being responsive to others.

In Milgram’s study, a step forward, participants were torn between hearing victims pleas and experimenter’s orders.

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Group Influence

How do groups affect our behavior? Social psychologists study all kinds of groups:

1. One person affecting another

2. Families3. Teams4. Committees

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Individual Behavior in the Presence of Others

Social facilitation: Refers to improved

performance on a task in the presence of

others. Triplett (1898) noticed cyclists’ race

time were faster when they competed against others than against a

clock.

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Social Loafing

Tendency of an individual in a group to exert less effort toward attaining a common goal

than when tested individually (Latané, 1981).

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Deindividuation

Loss of self-awareness and self-restraint in group situations that foster arousal

and anonymity.

Mob behavior

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Effects of Group Interaction

Group Polarization: enhances group’s

prevailing attitudes through discussion.

If a group is like-minded, discussion

strengthens its prevailing opinions

and attitudes.

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Groupthink

Mode of thinking that occurs when the desire for harmony in a decision-making

group overrides realistic appraisal of alternatives.

Attack on Pearl HarborKennedy and Cuban CrisisWatergate Cover-upChernobyl Reactor Accident

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Power of Individuals

The power of social influence is enormous but so is the power of

the individual.

Non-violent fasts and appeals by Gandhi led to the independence

of India from the British. Gandhi