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Page 1: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Social Influence and Persuasion

PSY 450

Social Psychology

Outline

• Conformity

• Obedience

• Two Routes to Persuasion

• Persuasive Techniques

• Resisting Persuasion

Social Influence and Persuasion• James Warren Jones (Jonestown)

• Started the People’s Temple in Indiana • Moved to California and eventually Guyana

• He claimed to have the power to heal, talk to spirits, and see the future

• Killed a congressman, reporters, and some members of his congregation who were trying to leave

• He convinced more than 900 people (including nearly 300 children) to commit “revolutionary suicide” by drinking purple Kool-Aid laced with cyanide

• Video• How could he have exerted such influence

over these people?

Page 2: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Cults: Heaven’s Gate• Video• Heaven's Gate was a cult based on UFOs that was located in San Diego• Founded by Marshall Applewhite in the 1970s after he had a heart attack

and was convinced that he had been selected by god to spread his message • 39 members of the group committed mass suicide in March of 1997 in order

for their souls to be taken aboard a UFO following the Hale-Bopp comet • The suicide was accomplished by ingesting phenobarbital and vodka

followed by covering their heads with plastic bags. • Bodies were found lying neatly in their own bunk beds, faces and torsos covered

by a square, purple cloth. Each member carried a five dollar bill and three quarters in their pockets. All 39 were dressed in identical black shirts and sweat pants, brand new black-and-white athletic shoes, and armband patches reading "Heaven's Gate Away Team" (one of many Star Trek references)

• Six men had been castrated. • Three waves of suicides with remaining members cleaning up after the death of

each prior group. Fifteen members died on March 24, 15 more on March 25, and nine on March 26.

• Only survivor: Rio Di Angelo was told to leave the group so he could ensure future dissemination of Heaven's Gate videos and literature

• A cult based on the continuing existence of the Knights Templar• Goals

• Preparing for the second coming of Jesus as a solar god-king• Furthering a unification of all Christian churches and Islam

• October 1994: They killed a 3-month-old infant they believed was the Anti-Christ (repeatedly stabbed with a wooden stake)…then committed mass suicide/murder with 15 suicides (poison) and 38 murdered…48 more died soon after in another mass murder-suicide

• Another mass suicide was stopped in the mid-1990s• March 23, 1997: 5 members killed themselves• The murder-suicides were committed on dates related to the

equinoxes and solstices • video

Cults: Order of the Solar Temple

Conformity

• Conformity: A change in behavior or belief as a result of real or imagined group pressure

• 2 Types of Conformity:

� Compliance: Conformity that involves publicly acting in accord with social pressure while privately disagreeing

� Acceptance: Conformity that involves both acting and believing in accord with social pressure

Page 3: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Why Conform?• Normative Influence: Conformity based on a person’s

desire to fulfill others’ expectations, often to gain acceptance

• Often an inner belief that the group is wrong• “I don’t want to be rejected by the group…”• Produces public compliance

• Informational Influence: Conformity that results from accepting evidence about reality provided by other people

• Genuine inner belief that others are right• “They must know something I don’t know…”• Produces private acceptance• Often occurs during ambiguous situations or crises

Sherif’s Studies of Norm Formation

• Participants were placed in a dark room, and saw a bright light move erratically for a few seconds

• Participants were asked how far the light moved

• Next day, they had the same experience in a group setting

• The group formed a norm for how far the light had moved (based on judgments from everyone in the group)

Results of Sherif’s Study

Estimated Movement (inches)

0

2

4

6

8

10

Day 1 Day 2 Day 3 Day 4

Person 1 Person 2 Person 3

�Over time, participants changed their estimates markedly in the direction of the other participants

�The light didn’t really move (autokineticphenomenon)

�This is an example of informational influence having an impact on group norms

Page 4: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

A

AAAA

????

Asch’s Conformity Studies

• When answering alone, 99% were correct

• What if others gave the wrong answer…would people agree with the group or give the obvious correct answer?

• 6 confederates and 1 participant

• Participant answered 6th of the 7 ‘participants’

• Confederates all gave the same wrong answer

• 37% of the responses were conforming

• About 75% of participants conformed at least once

Important Things to Remember About Asch’s Studies

• There was no ‘extra’ incentive to conform

• Unlike real life, the stimulus was unambiguous

Page 5: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Factors Related to Conformity• Group size: Conformity increases as the size increases up to

about 5 people

• Milgram’s study which had people looking up at the sky

• Unanimity: When participants had an ‘ally,’ conformity decreased considerably

• Dropped to about 9% in Asch’s studies

• Cohesion: The more closely a group is bound together, the more conforming its members tend to be

• Eating disorders tend to “spread” within sororities

• Status: Higher-status people have more impact

• Public response: We conform more when we respond in front of others rather than answering privately

Social Influence: Obedience and Authority

I was just following orders…

Questions to Consider

• If somebody ordered you to harm, torture, or even kill another person, would you obey his or her command?

• To what extent can situations change the nature of our behavior? Are we always aware of these changes?

• What makes an authority legitimate? Do certain cues suggest authority status?

Page 6: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Milgram’s Obedience Experiments

• Will people follow orders even if the order violates their ethical standards?

• Ostensibly a study about punishment and learning

• Teacher and learner• Teacher is the participant

• Learner is a confederate

• Teacher gives learner increasingly intense shocks if learner answers incorrectly

• From 15 volts (slight shock) to 450 volts (XXX)

• When will people stop giving shocks?• College students said they would stop by 135v

• Professionals estimated that less than 1 in 1000 would go to 450v

Page 7: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Learner’s Schedule of Protests in Milgram’s‘Heart Disturbance’ Experiments

75v: Ugh!

90v: Ugh!

105v: Ugh! (louder)

120v: Ugh! Hey, this really hurts.

135v: Ugh!

150v: Ugh! Experimenter! That’s all. Get me out of here. I told you I had heart trouble. My heart’s starting to bother me now. Get me out of here, please. My heart’s starting to bother me. I refuse to go on. Let me out.

165v: Ugh! Let me out! (Shouting)

180v: Ugh! I can’t stand the pain. Let me out of here! (Shouting)

195v: Ugh! Let me out of here. Let me out of here. My heart’s bothering me. Let me out of here! You have no right to keep me here! Let me out! Let me out of here! My heart’s bothering me. Let me out! Let me out!

210v: Ugh! Experimenter! Get me out of here. I’ve had enough. I won’t be in the experiment any more.

225v: Ugh!

240v: Ugh!

255v: Ugh! Get me out of here.

270v: (Agonized scream) Let me out of here. Let me out of here. Let me out of here. Let me out. Do you hear? Let me out of here.

285v: (Agonized scream)

300v: (Agonized scream) I absolutely refuse to answer any more. Get me out of here. You can’t hold me here. Get me out. Get me out of here.

315v: (Intensely agonized scream) I told you I refuse to answer. I’m no longer part of this experiment.

330v: (Intense and prolonged agonized scream) Let me out of here. Let me out of here. My heart’s bothering me. Let me out. I tell you. (Hysterically) Let me out of here. Let me out of here. You have no right to hold me here. Let me out! Let me out! Let me out!…

Please continue…

• If the teacher asks to stop or inquires what to do, the experimenter calmly tells him to go on:• “Please continue”

• “The experiment requires that you continue”

• “It is absolutely essential that you continue”

• “You have no other choice; you must go on”

• These simple statements were enough to make most participants obedient

Results

• 65% of participants went all the way to 450 volts (“XXX” level)

Page 8: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Milgram’s Obedience Experiments

4595145195245295345395445

No Complaint

Victim Pounds

Hear Protests

Victim Visible

Phone Orders

Touch Victim

Teacher's Choice

Mean

Maxim

um

Sh

ock

Valu

e

Who is More Likely to Obey?

• Gender differences?

• Women showed the exact same pattern

• Changes from generation to generation?

• Same pattern from 1963-1985

• Recent replications suggest that not much has changed

Social Influence:Persuasion

• Persuasion refers to an attempt to change someone’s attitudes or to influence their behavior

Page 9: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Two Routes to Persuasion• Elaboration likelihood model

• Central route• Involves conscious processing

• Careful and thoughtful consideration

• Most effective with those who are motivated and capable of careful analysis

• Peripheral route• Involves automatic processing

• Influenced by some simple cue

• Most effective with those who either do not care or lack the ability to carefully consider information

Components of Persuasion

• “Who says what to whom” was the idea behind early persuasion research concerning how to motivate soldiers

• Three components of persuasion

• Who – Source of the message

• Says What – Actual message

• To Whom – Audience

Who: The Source

• Source credibility

• Expertise and trustworthiness

• Sleeper effect – over time, people separate the message from the messenger

• Source likability

• Similarity and physical attractiveness

Page 10: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Food for Thought:Convert Communicators and Health Messages

• Convert Communicators: Individuals who tell us how they overcame their previous undesirable behaviors (i.e., argue against their own past transgressions)

• Subway’s Jared

• Likeable because they are similar to audience

• Mastery over behavior increases credibility

Say What: The Message• Reason Versus Emotion

• People in a good mood – more responsive to persuasive messages• Moderate fear appeals can be persuasive…but it is unreliable• Humor can be an effective means for persuading

• Negativity has risks and tradeoffs

• Tends to produce lower evaluations of both candidates

• Stealing Thunder• Revealing potentially incriminating evidence to negate its importance• Source appears more honest and credible

• Repetition• If neutral or positive response initially, repeated exposure = persuasive

message• Advertisement wear-out• Repetition with variety

To Whom: The Audience• Moderately intelligent are easiest to persuade• High in need for cognition are more persuaded by strong

arguments • Attitudes are more resistant to change

• High in public self-consciousness are more persuaded by name brands

• Impressionable years hypothesis• Middle age people most resistant to persuasion

• Attitudes formed in young adulthood remain fairly stable over time

• Messages consistent with cultural values are more persuasive• “Overheard” messages are more persuasive (e.g., Product

placements)• Distraction

• Effective if the message is weak but less effective with a strong message

Page 11: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Alpha and Omega Strategies

• Alpha strategies: Persuade by increasing approach forces

• Strong arguments that compel action• Add incentives• Increase source credibility• Provide consensus information

• Omega strategies: Persuade by decreasing avoidance forces

• Sidestep resistance (e.g., push the choice into the future)• Address resistance directly (e.g., two-sided messages)• Address resistance indirectly (e.g., raise the target’s

confidence)• Use resistance to promote change(e.g., reverse psychology)

Techniques Based on Commitment and Consistency• Foot-in-the-Door Technique: Start with small request to gain

eventual compliance with larger request (e.g., Door-to-door vacuum cleaner salemen)

• Low-ball Technique: Start with low-cost request and later reveal the hidden costs (e.g., used car salesmen)

• Bait-and-Switch Technique: Draw people in with an attractive offer that is not available and then switch to a less attractiveoffer that is available (e.g., cheap hotel rooms)

• Labeling Technique: One assigns a label and then requests a favor that is consistent with the label (e.g., “You look like a kind man. Could you help me with my flat tire?”)

• Legitimization-of-Paltry-Favors Technique: A requester allows for a small amount of aid to be given (e.g., “Please donate to NPR. Even $1 would be helpful!)

Techniques Based on Reciprocation

• Door-in-the-face Technique

• Start with an inflated request and then retreat to a smaller one that appears to be a concession

• Does not work if the first request is viewed as unreasonable

• Does not work if requests are made by different people

• That’s-Not-All Technique

• Begin with inflated request but immediately adds to the deal by offering a bonus or discount

Page 12: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

• “What is rare is a greater good than what is plentiful”– Aristotle

• Scarcity: Opportunities seem more valuable to us when they are less available

• Heuristic used in making decisions

• Scarcity activates psychological reactance• If I can’t have Item X, then I will really want Item X!!

• Putting the scarcity principle to work:

• Limited numbers paradigm: only have a few items left

• Time limit paradigm: offer is only available for a limited time

Techniques Based on Scarcity

Techniques Based on Capturing and Disrupting Attention• Pique Technique: Captures people’s attention

by making a novel request• “Sir, can you give me 28 cents?”

• 28 cents instead of a quarter

• Disrupt-Then-Reframe Technique: Introduce an unexpected element that disrupts critical thinking and then reframe the message in a positive light• “This box of cards costs 300 pennies…it is a

bargain!”

• 300 pennies instead of $3

Defenses Against Techniques• Commitment and Consistency

• Reexamine the sense of obligation

• Reciprocation• Evaluate favors or concessions to avoid guilt over lack of

reciprocity

• Scarcity• Recognize psychological reactance as a signal to think

rationally• Evaluate the reason we want the item

• Capturing and Disrupting Attention• Stop and think before action

• Social Proof• Recognize ‘fake’ social proofs

Page 13: PSY 450 Social Influence and Persuasion · Social Influence and Persuasion PSY 450 Social Psychology Outline • Conformity • Obedience • Two Routes to Persuasion • Persuasive

Resisting Persuasion

• Attitude Inoculation

• When people resist persuasion, they become more confident in their initial attitudes

• Advance warning of a persuasive message

• Less persuaded by it

• Boomerang effect

• Increase cognitive energy

• Sleep deprivation and use of distracting music may increase susceptibility to persuasion

Conclusion

• Most individuals are susceptible to conformity pressure

• Individuals are likely to obey authority figures if we perceive them as legitimate

• There are two routes to persuasion: central and peripheral

• There are a number of techniques that are capable of persuading us to change our attitudes or alter our behaviors


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