Monday, February 27, 2012

2/27-2/29: Social Psychology- Biases and Heuristics (chapter 3 Myers)

Social Cognition

  • Social Cognition- applying cognitive psychology  to social world
    • how we process info on the social world; involves other people
    • what factors of the situation affect an average person's behavior
Assumptions about Social Cognition

  • Motivated to Make Sense
    • via seeing patterns in the social world
  • World loaded with Info
    • far more info than you can process; everything = info
    • accustomed to process info in specific way
  • Limited Capacity
    • brains have limits that incoming info cannot be fully processed
  • Cognitive Miser
    • greatly oversimplify info and process as much as needed
    • assumption and empirically based
3 types of Simplification Strategies

  • Dispositional Inference Biases
  • Confirmatory Biases
  • Cognitive Heuristics
Dispositional inference biases
  • Dispositional inference- behavior seen as caused by persons' personality
    • one instance of a person leads you to define that behavior by their personality
      • person's sad but you don't know that they failed an exam but you think that that's their personality
    • first pass
  • Fundamental attribution error- bias toward person-based inferences
Jones and Harris (1967)

  • Had to write pro/anti Castro essays
  • Received free/forced choice manipulation
    • free to write pro- group A
    • free to write anti- group B
    • forced to write pro- group C
    • forced to write anti- group D
  • Rated debater's actual attitude toward Castro
  • Results: Anti  0-100  Pro
    • Group A  = 58
    • Group B = 22
    • Group C = 42
    • Group D = 22
  • Take-home lesson
    • Actor- observer bias
  • Actor-observer bias: behavior of others due to personality; my behavior due to situation
    • situation affects your behavior but everyone else's behavior is their personality
    • represented in language
  • Confirmatory Bias: interpret, seek, and create info that verifies existing beliefs
    • Interpret
    • Seek
    • Create
  • Darley and Gross (1983)
    • Experiment associated with Confirmatory bias
    • girl from background (told rich/ told poor) does task on video
    • Results: 
      • high expectation/no watch =  grade 4.2
      • low expectation/no watch = 3.9
      • high expectation/ watch = 4.8
      • low expectation/ watch = 3.5
    • Take home lesson
      • Expectation drives people's perception
  • Synder and Swan (1978) 
    • interviewer/interviewee roles
    • select list of possible questions
    • before selection, subjects told the other was extrovert/introvert
    • Results:
      • Extravert: chose extravert-oriented questions ( how do you liven up party?)
      • Intravert condition: chose introvert- oriented questions (have you felt left out?)
  • Self-fulfilling prophesy: inaccurate expectation leads to expectation-consistent behavior
    • you think person's going to act in specific way, you behave in a way that would make them respond that way
  • Synder, Tanke, and Bersheid (1977) [self-fulfilling prophesy]
    • phone conversation with woman
    • shown pic of attractive/unattractive partner
      • pics not of subjects
    • Females' responses coded for openness and warmth
    • Result
      • 'attractive' - more open and warm response 
Cognitive Heuristic
  • Cognitive heuristic - mental shortcut
    • makes impressions and judgments
  • Outline
    • Anchoring and adjustment heuristic
    • Representativeness heuristic
    • Availability heuristic
    • Straightness heuristic
  • Anchoring and Adjustment heuristic- anchor/begin from rough estimate, then adjust
    • setting the bar = anchor; working up or down from bar = adjustment
    • anchor = often ourselves
    • ex: roommate offers blind date with girl who looks like jessica alba
      • anchor = jessica alba adjustment = girl's looks
      • disappointment with her not comparing then leads to self-fulfilling prophecy
    • ex: roommate says ellen is smart
      • anchor = my own intelligence  adjustment = her actual intelligence
  • Representative heuristic- likelihood judgments are based on matching a stereotype
    • Conjunction error- combo of two events are thought to be more likely than two independent events
      • in reality it is the same probability
    • ex: outgoing extravert with love of books
      • probability of wanting to become engineering major
      • probability of wanting to become engineering major then switching to journalism
        • this one seems to have bigger chance even though it really does not
    • Gambler's Fallacy- thinking that something is due after not being there when in reality the same probability for the same hand exists every time
    • Hot Hand phenomena- "on a roll" basket after basket ; doesn't exist
      • ex: HH not present on stats of NBA players
  • Availability heuristic- likelihood estimates based on how quickly instances come to mind
    • pops to mind quicker = more common
    • instance thought about more, perceived to be prevalent
    • False Consensus effect- overestimate others' agreeing to our opinions
  • Straightness heuristic- tendency to "tidy up" untidy realities to achieve "prettier picture"
    • want to make world simpler/more straightforward than is
  • Unconscious bias
    • people are generally unaware of their biases

    No comments:

    Post a Comment