social: impression formation Flashcards
define impression formation
way in which we form impressions of others and attribute specific characteristics to them
what is negativity bias when forming impressions?
negative info is remembered more
negative traits have greater impact on impressions than positive traits
describe a study that looked at the the speed at which impressions are formed
lab based study
photos of faces shown on screen and presented at different time exposures
(100ms/500ms/1000ms)
then asked if the person is competent? (yes/no)
compared ratings to no time constraint control
found 100ms is sufficient exposure time to form a wide range of trait impressions
suggests impressions have adaptive function as trustworthiness reaction times were most similar to control judgments
what are the 2 classic theories of impression formation
configural model
cognitive algebra
describe Aschs (1946) configural model theory
form an overall consistent impression, gestalt approach
central vs peripheral traits
central = greater influence
e.g. warm vs. cold / polite vs. blunt
ppts divided into 2 groups and given list of traits only differing by warm or cold
asked to write down impression formed
peripheral traits had less influence on overall impression than central traits
what was the primacy effect in Aschs configural model?
first traits perceived → influence how subsequent traits are seen
if positive trait seen first → negative impressions that may follow are less likely because we want to make a simple consistent impression that was first observed (don’t want to change impression once we have formed one)
describe the study by williams & barge (2008) that developed Aschs study on the configural model
ppts arrived and asked to hold either hot or iced coffee. then completed Aschs study of reading list of traits and then rating the target person.
higher ratings given when holding hot coffee compared to iced coffee
(ppts were unaware of this influence)
shows physical warmth experience increases feelings of interpersonal warmth (+ vice versa with cold)
describe the cognitive algebra theory of impression formation
adaptive function to avoid dangerous people
evaluative process
assign a SUBJECTIVE numerical value to each trait and the value depends on what is important to each individual
then add up overall score = overall evaluation
what are the 3 types of ways evaluations are combined in cognitive algebra?
summative
averaging
weighted averaging
describe summative evaluations
each trait has value
more important traits to each individual = higher value
+ traits = + value
- traits = - value
add up total score
overall - value = negative impression (+ vice versa)
describe averaging evaluations
strong central traits = higher value
mild peripheral traits = lower value
a few strong traits can influence impressions more than lots of mild traits
mild traits bring down the average
describe weighted averaging
important traits depend on context
certain traits are given greater weighted averages in certain contexts
e.g.
being caring is important (+1 value)
being caring is more important if you are a nurse (+2 value)
give some critical thoughts on Aschs 1946 configural model study
stimuli is artificial → neat sequential lists + clearly defined traits
(aren’t representative of a complex person in real life)
not quantitative
results based on group averages → what about individual differences?
role of perceiver e.g. mood on the day
other info (physical appearance) is needed to influence impressions
but…
aschs study was the first experimental study on impression formations → influential
describe research on the role of physical appearance and its effect on impression formation
halo effect, baby faced faces, how early in development, facial processing using computer generated faces
what are the benefits of using computer generated faces in research?
high experimental control
can easily manipulate variables
allows for the manipulation of specific facial features while other features can remain the same