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Prosocial Behaviour. November 20th, 2009 : Lecture 21. Lecture Overview. Announcements Finishing up TV and Violence Co-operative Dilemmas Prosocial Behaviour How Do We Help? When Do We Help? Why Do We Help?. Announcements. No Office Hours next Wednesday (11/25) - PowerPoint PPT Presentation
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Prosocial BehaviourNovember 20th, 2009 : Lecture 21
Lecture Overview
Announcements
Finishing up TV and Violence
Co-operative Dilemmas
Prosocial Behaviour
How Do We Help?
When Do We Help?
Why Do We Help?
AnnouncementsNo Office Hours next Wednesday (11/25)
No Lecture next Friday (11/27)
TV and Violence
Eron & Huesmann (1986)
Results:
Violent TV watching at age 8 predicted:
Aggression at age 19
Criminal acts of violence (rape, robberies, assault) at age 30
Controlled for aggression at age 8
Moderating Factors in TV-Aggression Link
Model Similarity
Punishment versus Reward
Apparent Reality
Cartoons influence aggression less than film
Apparent consequences
Modelling more likely when pain/harm caused by violence is not depicted
How Does TV Affect Aggression?
Imparts information about how to aggress
Primes anger and aggression
Makes world seem more dangerous, increases fear of victimization (Gerbner et al., 1994)
Heavy viewers tend to overestimate frequency of violent crime, probability of being assaulted
Loosens inhibitions toward violence
Food For Thought
“An angry person can pull the trigger of his gun if he wants to commit violence, but the trigger can also pull the finger …”
- Leonard Berkowitz
Co-operative Dilemmas
Situations where the most beneficial action for an individual will be harmful for the collective group
Commonly discussed social dilemmas:
Escalation of Conflict
Tragedy of the Commons
Prisoner’s Dilemma
Escalation of Conflict
Interpersonal conflict feeds itself and escalates if one side does not begin concession
Escalation of Conflict in Close Relationships
Stimulus: Partner APartner A comes home and snaps at Partner BPartner B
Partner BPartner B’s Response:
An equally hurtful remark
Partner BPartner B is vindicated, but Partner APartner A feels compelled to respond with an equally vehement remark
Conflict escalatesescalates
A defusing remark
Partner BPartner B takes a hit in pride, but Partner APartner A has no reason to say another hurtful remark
Conflict defusesdefuses
Escalation of Conflict in International Relations
Stimulus: Country ACountry A accidentally bombs a civilian area of
Country B Country B during a training exercise
Country BCountry B’s Response:
Bomb them back
Country BCountry B is vindicated, but they are now at war with
Country ACountry A
Accept apology
Country BCountry B takes a hit in many ways, but they maintain peaceful relations with Country ACountry A
Tragedy of the Commons
A co-operative dilemma in which everyone takes from a common pool of goods that will replenish itself if used in moderation but disappear if overused
Tragedy of the Commons
Why do we take more than our share?
Anchoring and Adjustment Heuristic
Desired share is used as an anchor
Do not sufficiently adjust down
Size of commons is not readily estimable
Tragedy of the Commons
When do we take our fair share?
Both the size of the commons and the group that is sharing it are easily determined
The size of an equal share is explicitly stated
The Prisoner’s Dilemma
A situation where two people must make a collectively-dependent decision without knowing the other person’s decision
A special case of John Nash’s Game Theory
The Prisoner’s Dilemma
Do Not ConfessDo Not Confess ConfessConfess
Do Not Do Not ConfessConfess
ConfessConfess
Prisoner BPrisoner B
Pri
son
er
AP
riso
ner
A
1 Year
1 Year
20 Years
20 Years
Life
Life
Parole
Parole
The Prisoner’s Dilemma
Strategies that maximize outcomes:
Winner: Simple Tit-for-Tat strategy
Co-operate on first round
Then mirror opponent’s response
Defect as soon as opponent defects
When game is about to end (last trial):
Defect
Prosocial Behaviour
Action performed with the goal of benefiting another person
Altruism
Helping done purely out of a desire to help another person
Does not benefit the self
May even involve a cost to the self
Altruism : Examples
In 1982, Anne Herbert coined the phrase, “Random Acts of Kindness”
Idea is to do random kind acts for others with no intention of being repaid
Paying tolls for others
Shovelling snow for neighbours, anonymously
Altruistic Personality
Dispositional tendency to help others across a wide variety of situations
Are Some More Altruistic Than Others?
Hartshorne & May (1929)
Method:
1. Observed prosocial behaviours of 10,850 school children
2. Focus on behaviours across a number of situations
Are Some More Altruistic Than Others?
Hartshorne & May (1929)
Results:
Most children helped occasionally
Average correlation between helping in two different situations was .23
Are Some More Altruistic Than Others?
Summary of Hartshorne & May (1929):
Most children help, but it depends on the situation
Also, self-report measures of altruism typically do not predict actual altruistic behaviour
How Do People Help?
McGuire (1994)
Method:
1. Surveyed 2 sample of college students for types of helping both given and received
First sample received only open-ended questions
Second sample rated the first sample’s responses on frequency, importance, causes, and consequences
2. Factor analysed data
How Do People Help?
McGuire (1994)
Results: Factor Analysis revealed 4 dimensions of helping
Casual helping
Substantial helping
Emotional helping
Emergency helping
How Do People Help?
McGuire (1994)
Results: Casual Helping
Helping with a homework assignment or schoolwork
Lending a book, notes, record album, household item
Giving a ride within the city
Giving directions
Opening or holding a door
Giving someone a snack
How Do People Help?
McGuire (1994)
Results: Substantial Personal Helping
Bringing or sending flowers, a card, or a small gift
Giving a ride a long distance (greater than 20 miles)
Helping someone pack or move
Visiting someone from out of town
How Do People Help?
McGuire (1994)
Results: Emotional helping
Listening to someone talk through a problem
Giving advice about a situation someone is in
"Being there" for someone; providing loyalty
How Do People Help?
McGuire (1994)
Results: Emergency helping
Starting a car or changing a tire for someone
Taking care of someone who is sick
Walking someone home at night
When Do We Help?
The situation can influence whether we will help another person (Altruism) or not (Bystander Apathy)
When Do We Help?
Situational Factors in Helping:
Mood
Spare time
Environment
Number of Bystanders
Relationship with Person In Need
Mood
Mood affects helping behaviour
Good news:
Both good and bad moods increase helping relative to neutral mood
Positive Mood & Helping
Isen & Levin (1972)
Method:
1. Participants were random shoppers at a shopping mall
2. Positive mood induced or not:
Positive mood induction: Left a dime in a pay phone
Control: No dime
3. Observe other person drop papers after leaving phone booth
Positive Mood & Helping
Isen & Levin (1972)
Results: How many people helped pick up the person’s papers?
Why Positive Mood?
More likely to make positive attributions for others’ behaviour and give them the benefit of the doubt
Helping helps us maintain good mood
Good moods increase self-attention, so we act more consistently with our values
Negative Mood & Helping
Negative State Relief
When we feel bad, we are more likely to help
Spare Time
We help less when we feel rushed for time
Good Samaritan Study
Darley & Batson (1973)
Method:
1. Ps were Princeton theology students, told it was a study about persuasion
2. Ps first spent 10 minutes preparing a sermon on the Good Samaritan, which they will give to an audience at another building on campus
3. Hurry manipulation: Experimenter says ...
Not in hurry: “You will have enough time to get there”
Moderate hurry: “You will have just enough time to get there”
High hurry/Late: “You will be late”
On the way to talk, pass hurting confederate
Good Samaritan Study
Darley & Batson (1973)
Results: % of Theology Students Who Stopped to Help
Environment
Urban versus Rural Environments
Do you think you are more likely to be helped if:
A.You fall down and break a leg in the middle of the Annex
B.You fall down and break a leg in the middle of Grimsby
C.Equally likely to get help in either place
Urban vs. Rural
Why Would You Get More Help in Rural Environments?
A.Rural values: Rural people are more likely to help
B.Immediate Context: Rural environment facilitates helping
C.A little of both
Urban Overload Hypothesis
Urban environments constantly bombard you with stimulation, so you keep to yourself to avoid being overwhelmed by it
Evidence:
Where an incident occurs is more important than where the witnesses grew up
City density more important than city size
Bystander Apathy
March 13, 1964
Kitty Genovese stabbed to death crossing a parking lot while returning from work late at night
Murder took place over 30 minutes
At least 38 independent witnesses
No one called the police for help
Bystander Apathy Effect
The greater the number of bystanders who witness an emergency, the less likely that any one of them is to help
Bystander Apathy
Latané & Darley (1970)
Method:
1. Participants discussed “college life” over headphones
2. Group size manipulation:
Lone witness: 1 Participant + 1 Confederate
Two witnesses: 2 Participants + 1 Confederate
Four witnesses: 4 Participants + 1 Confederate
During the discussion, the actor fakes a seizure
Bystander Apathy
Latané & Darley (1970)
Results: How many people helped?
Why Does This Happen?
Pluralistic Ignorance
Diffusion of Responsibility
Pluralistic Ignorance
Bystanders assume that nothing is wrong in an emergency because no one else looks concerned
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Smoking Room Study
Diffusion of Responsibility
Feeling less responsible when others are present, because others are equally able to act
Bystander Apathy or Sympathy
Sequential Model of Bystander Helping Versus Apathy:
1. Notice the event
2. Interpret the event as an emergency
3. Assume responsibility
4. Know appropriate form of assistance
5. Implement decision
Breaking the Bystander Apathy Effect
It just takes one person to break pluralistic ignorance and diffusion of responsibility!
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It Just Takes One
Relationship With Person In Need
Kin Selection
Communal Relationships
Ingroups and Outgroups
Communal Relationships
In communal relationships, we give in response to each other’s needs
Less likely to receive help from relationship partners if in equity relationships
Ingroups and Outgroups
We are much more likely to help an ingroup member than an outgroup member
Magnification by culture:
Interdependent cultures help ingroup members more than Independent cultures
Interdependent cultures help outgroup members less than Independent cultures
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Bystander Apathy & Ingroup Members
Why Do We Help?
Theories of Helping
Empathy-Altruism Hypothesis
Why Do People Behave Altruistically?
2 competing hypotheses:
Genuine Altruism
Innate motive to help others in need, without conscious regard for one’s own self-interest
Social exchange theory
All human behaviour, including helping, is geared toward maximizing benefits and minimizing costs to the self
Why Do People Behave Altruistically?
You Decide: Is there such a thing as genuine altruism?
A.Yes
B.No
C.Undecided
Reciprocal Altruism
Reciprocal altruism
We are selectively prosocial to those who are prosocial towards us
Evolutionary Theories
Kin Selection
Behaviours that help a genetic relative are favoured by natural selection
Inclusive Fitness
We select mates not only for who has the most chance to survive, but also for who will maximize our chance of survival
Helping Others Helps You
Negative State Relief
Seeing others suffer makes us suffer physiologically, so we act pro-social to reduce our own distress
Social rewards
A lot of positive social rewards (e.g., badges, awards, thanks, reputation) for acting in an unselfish manner
Helping increases when followed by social approval, public recognition (Staub, 1978)
Social Norms
It is socially normative in most cultures to help others
Reciprocity Norm
You should help others that have helped you
Helping Norm
Helpfulness is a socially valuable trait
Learning Perspective
Prosocial behaviour can be learned like any other behaviour (e.g., via norms, values)
Reinforcement & Prosocial Behaviour
Prosocial behaviour can be increased by rewarding it
Dispositional praise more effective than behavioural praise
Social Modelling & Prosocial Behaviour
Seeing others help increases helping
Social Modelling & Prosocial Behaviour
Sprafkin et al. (1975)
Method:
1. Children watch 1 of 3 TV clips:
Lassie clip where a boy helps a dog
Neutral Lassie clip
Brady Bunch clip
2. Kids were then asked if they would play a game or help puppies in distress
Social Modelling & Prosocial Behaviour
Sprafkin et al. (1975)
Results:
Helping increased after watching Timmy help Lassie
Altruism & Empathy
People feel purely altruistic when they are motivated to help by empathy for another
Empathy
The ability to put oneself in the psychological frame of reference of another person
Empathy-Altruism Theory
Perception That
Someone Needs Help
Perception That
Someone Needs Help
EmpathyFor Person?
EmotionalResponse
Type ofMotive
SatisfactionOf Motive
LikelyBehaviour
YesYes
NoNo
Empathic
Concern
Empathic
Concern
Altruistic
Altruistic
Reduction of Other’s Distress
Reduction of Other’s Distress
HelpHelp
Personal DistressPersonal Distress EgoisticEgoistic Reduction of
Own DistressReduction of Own Distress Help
(if can’t escape or
helping is in own
interest)
Help(if can’t
escape or helping is in
own interest)
Escape(if possible)Escape
(if possible)
Empathy Altruism Theory
Batson et al. (1991)
Method:
1. Participants observe “Elaine” complete a task and get shocks
2. Empathy manipulation:
High Empathy: Elaine has similar attitudes and background
Low Empathy: Elaine has dissimilar attitudes and background
3. Elaine becomes upset by experimental treatment after 2 shocks, but says she will continue
Participants are asked to take Elaine’s place
Ease of Escape manipulation:
1. Difficult Escape: Participants must stay for remaining 8 trials, regardless of whether they take Elaine’s place, or
Easy Escape: Participants can leave if they don’t want to help Elaine
Empathy Altruism Theory
Batson et al. (1991)
Results: Participants who took Elaine’s place (helped)
Hey Brother, Can You Lend a Dime?
Next Lecture (11/25):
Stress & Health
Related Websites:
Random Acts of Kindness Foundation:
http://www.actsofkindness.org/
ABC’s “What Would You Do”
http://abcnews.go.com/whatwouldyoudo