Groups Flashcards
group
a collection of individuals that have relations to one another that make them interdependent to some degree
Groups vary in degree of
1)group entitativity
2)hierarchy
group entitativity
mutual interdependence and cohesion
ie:coworkers in a unit
hierarchy:
arrangement of individuals in the group in terms of relative power(larger the group-> the more they tend to be hierarchical)
Why live in groups?
Protections from predation human violence
Collective hunting of big game(hunting of big animals)
Cultural learning, the collective brain needs groups
Participants were in fMRI being scanned while playing a video game(cyberball)
1st condition:inclusion phase(ball is being shared and passed around)
2nd conditions: exclusion phase(ball is only being passed between 2 other teammates)
When participants were excluded, greater activation of dorsal anterior cingulate cortex (dACC)
Does-dependent: the more participants felt excluded, the more activation in dACC(same brain area that respond to physical pain)
Social facilitation:
The effect of the presence of others on performance
Social facilitation:
presence of others enhances dominant (well-practiced) response, but inhibits less-dominant (not well practiced) response
Zajonc’s theory:
groups can increase/decreases performance based on certain things
Social loafing:
decreased effort put forth by individuals when working in a group
diffusion of responsibility
Ingham (1974) tug of war study: blindfolded participants pulled 18% harder when they thought they were alone
Wisdom of the crowd
Average judgment converges on the correct solution
1)the crowd has a diversity of opinions
2)individual opinions are independent of one another
3)the crowd should be able to aggregate individual opinions into one collective decision
Herd mentality
is detrimental to wise decisions and creativity and often lead to disastrous group decisions
-Aggregated information yields better and more creative solutions
-diverse views in a group weaken the confirmation bias and combine the best features of different ideas
-Diverse groups of non-experts beat even expert opinions
-As long as the individual’s judgements are independent of one another or even neg related, homogenous groups are not wise groups
Groupthink
-opposite of wide crowd
social pressures to reach consensus in an highly cohesive group which leads to suboptimal decisions
Conditions that foster groupthink
Stressful situation
Like minded members of group
Isolation from outside info and influence
Lack of clear procedures
Strong, authoritarian group leader
Symptoms of group think
Illusion of invulnerability
Dissent is discouraged, “mindguards”
Self-censorship, illusion of unanimity
One-sided debate(collective rationalization)
Unwillingness to consider alternatives
Strategies to reduce groupthink
Encourage criticism and diverse viewpoints
Input from outside sources
Generate different ideas, approaches before decisions is made
Watch out for illusion of invulnerability
Bias and discrimination has been steadily declining
Implicit attitudes for (sexuality, race,skin tone) decline
Implicit attitude for age and disability hasn’t changed that much, body weight seems to increase
Least change: Age attitudes 22% decline(explicit attitude)
Most change: race attitudes 98% decline(explicit attitude)
Decline in attitude change in conservatives and liberals for sexuality, race, but not much for age
The ABC of intergroup Relations
Prejudice (affect):
Discrimination(behavior):
Stereotypes(cognition
Prejudice (affect):
a negative attitude or affective response towards a certain group and its individual members
Discrimination(behavior):
negative behavior towards members of a particular group based on their membership in that group
Stereotypes(cognition)
beliefs about attributes that are thought to be characteristic of members of particular groups
Distal explanations: Evolutionary explanations of ingroupishness
1)parochial altruism
2)pathogen avoidance
Evolutionary account #1: parochial altruism
Endemic intergroup warfare in ancestral environments
Intergroup psychology evolved to be in-groupish-small, cohesive, cooperative but mutually hostile bands
Innate dual tendency for 1)altruism towards ingroup AND 2)hostility towards outgroup- we are a clique-sh species
“Us vs them thinking” or coalitional psychology
But what counts as ingroup vs outgroup is flexible, socially constructed
Explains why the content of prejudice can be different across time and place, but us vs them mentality tends to be more resilient