Group Processes-Social Influethe
March 7 , 2013
Overview
• Why do people join groups?
• Group influence- how it affects behaviour
• Group Decisions
• Conflict and Cooperation
What is a group?
• Group: A collection of two or more people who interact with each other and are interdependent, in the
sense that their needs and goals cause them to rely on each other
• **important to be interacting and depend on each other**
• Ex. Church groups, clubs at school, spots teams, etc
Why do people join groups?
• Groups help us to…
• Belong- survival advantage in the past (reproduction, raise offspring, pass on genes) **need to
affiliate with others**
• Define who we are (i.e. self-concept and identity); roles we occupy in society and help us come
up with narratives- seeing yourself as part of group means you see yourself as possessing those
characteristics (i.e. belonging to cheerleading group in high school)
• Groups can give us feedback in terms of who we are
• Get information about ourselves through social comparisons
• define who we expect to be in the future
• become more involved in social change; groups help individuals become force of social change
• forming a group because people share similar ideas
What is the composition of a group?
• Social Groups – certain aspects that make them powerful influences on other’s behaviour
• Usually have between 2 and 6 members (relatively small groups)
• Large numbers decreases interaction between members- easier to have interaction with
each of the other members if the group is small (hard to have one on one interaction in
fairly large groups)
• High levels of similarity- members tend to be alike in terms of age, sex, beliefs and opinions,
personality traits
• Many groups attract people who are similar
• Groups operate in ways that encourage similarity (i.e. promote conformity); by virtue of
being in group encourages and reinforces similarity
• Have clear social norms- defined by expectations of group members behaviours
• Explicit and implicit rules on how to behave with each other
• Have well-defined social roles
• Shared expectations by group members about how particular people in the group are
supposed to behave (specific to behaviour)
• But, Cost to behaving inconsistently with expectations associated with those roles
• May result in loss of personal identity and personality
• Ex. Stanford Prison Experiment
• Group cohesiveness
• Qualities of a group that bind members together and promote liking among them
• Something about being member of that group that keeps you bound to other
group members (i.e. cultural/national identities that binds people together in
collective group) • But, Concern with maintaining good relations may impair ability to make good
decisions (gets in way of actually functioning of the group); i.e. don’t voice
disagreement (process loss) because you don’t want to upset other group
members
The Presence of Others
• Mere presence
• Co-action: When people are in a group and working simultaneously and individually on a non-
competitive task; working together, not against each other
• Passive audience- not working/interacting with others but they simply watch you (passive)
The Presence of Others: Social Facilitation
• Triplett (1898)- one of the first psychological experiments
• Cyclists’ times were faster when racing together than when racing alone
• Children wound a fishing reel faster when they worked as co-actors than when alone
• Social facilitation: The tendency for people to do better on simple, well-learned tasks when they are in
the presence of others (tasks that are relatively simple)
• Also occurs with animals- i.e. ants engage in certain behaviours much faster when they
are together with other ants
• Other research showed that sometimes the presence of others lead to worse performance
• Robert Zajonc (1965) **arousal enhances dominant response**
• New from other areas of psychology that arousal enhances/facilitates the dominant response
but only in certain tasks
• Dominant response: Response that is most likely to occur in a given situation (typically is the
correct response because it’s easy)
• Simple/well-learned tasks
• dominant response is likely to be the correct response
• arousal makes it more likely that you will be correct because it facilitates that
you respond in the correct way
• Difficult/not well-learned tasks
• dominant response is likely to be the incorrect response
• ***being in the presence of others arouses us, then increasing our chances of
responding correctly to a situation***
• Presence of others will…
• Improve performance on simple/well-learned tasks
• Enhances dominant response, i.e. correct response
• Impair performance on difficult/not well-learned tasks
• Enhances dominant response, i.e., incorrect response
• Why?
• Because the presence of other increase arousal
• Does the presence of others always create arousal?
• Arousal increases as number of others present increases
• Being in a crowd also intensifies positive and negative reactions
• Why does the presence of others increase arousal?
• Evaluation apprehension
• Distraction
• Mere presence of others can increase arousal
• Evaluation apprehension- how concerned we are that others will be judging us in some way (i.e.
performance)
• Concern for how others are evaluating us
• Dominant response is enhanced when we believe that we are being evaluated • Increase in how aroused you feel – explains why we do better in presence of others
• Distraction
• Distracted by thoughts of how co-actors are doing or how the audience is reacting
• Distracts us from performing the task
• Also trying to pay attention to non-human distractions
• Ex. Bursts of light
• Overloads the cognitive system causing arousal- too much stimulation
The Presence of Others: Social Loafing
• Presence of Others
• Presence of others may relax us when we can merge into the group, i.e., when our individual
performance cannot be evaluated
• Social Loafing- presence of others relaxes us so we don’t necessarily try that hard so we do
worse on simple tasks
• The tendency for people to do worse on simple tasks, but better on complex tasks,
when they are in the presence of others and their individual performance cannot be
evaluated
• **Being in presence of group can cause social loafing if people’s individual contributions
cannot be evaluated (i.e. singing in a group, playing tug of war)
• If the task is simple, we rely on others but if the task is difficult and there is incentive to
perform that we work better
• How to reduce social loafing
• Make the task challenging, appealing (interesting), or involving (if people believe their effort will
matter, they are less likely to engage in social loafing)
• People perceive efforts as indispensable
• Make people believe that high effort will bring rewards (i.e. offering incentives)
• Form bonds between group members
• Seeing someone again- future consequences of social loafing
The Presence of Others: Deindividuation
• Deindividuation
• The loss of self-awareness (focus your attention inward, beliefs, values, morals, attitudes) and
evaluation apprehension
• occurs in group situations that foster anonymity and draw attention away from the
individual
• The loosening of normal constraints on behaviour when people are in a group, leading to an
increase in impulsive and deviant acts
• Why does it lead to impulsive acts?
• Group size
• Arousal increases with size
• People are less identifiable in a larger group
• makes people feel less accountable for their actions because it reduces the
chances that the individual will be singled out and blamed
• More likely to act according to the group’s norms as opposed to society’s norms
• Physical anonymity
• makes people feel less accountable for their actions because it reduces the chances that
the individual will be singled out and blamed
• Ex. Online communities
• Arousing or distracting activities
• Ex. Chanting or clapping
• When people see others acting in the same way they are • Believe that others feel as they do
• Reinforces their own feelings
• Impulsive group action draws our attention
• Reduces self-awareness
• shifts people’s attention away from their moral standards
• Does not always lead to negative behaviour
• It depends on the group’s norms
• Ex. At a party and the norm is to eat a lot
Group Polarization
• Risky shift phenomenon- group’s decisions collectively riskier than decision of individual member
• Group’s decision is riskier than any one individual member of the group’s decision
• Stoner (1961)
• Group decisions can also be more risk-averse
• Group Polarization: The tendency for groups to make decisions that are more extreme than the initial
inclinations of the their members; extreme on negative side (risky) or extreme on positive side
• Why does group polarization occur?
• Informational social influence
• Group discussion pools ideas
• Exposure to
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