PS101 Lecture Notes - Lecture 10: Agreeableness
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November 10, 2014
- Who are you?
-Throughout time people have been intuitively aware of individual differenced
-They like some people and not others
Historical knowledge of Individual Differences
-Theophrastus wrote about different “ characters” to try to describe individual differences
-Attempting to characterize people - their personalities
Personality- distinctive and relatively enduring ways of thinking feeling and acting that
characterize a person’s response to situations
-Comes from the word persona - an actors mask
How do we Measure personality?
-Ask them, others, tests, and observations
- Structured set of standardized questions
- Note other behaviours – appearance, speech patterns etc.
- The drawbacks are characteristics of interviewer can affect the answers, and the
dependence on co-operation, honesty of interviewee
- Behavioural Assessment
- Need explicit coding system
- Aim is not solely to “describe” behaviour- specific behaviour, frequency, and specific
situations, under what conditions
- Inter judge reliability because a high level of agreement among observers
- Objective measures use standard questions and agreed upon scoring key
- Advantage: collect large amount of data
- Disadvantage: validity of answers (truthfully answered) validity scales
- Based on theoretical conception of trait
- Concern- has to identify what are the underlying traits that describe people
Traits the big Issue
- Identifying the number of traits
- Are they stable over time, and situation?
- Are they the product of genetics? Environment?
- Number of traits measured varies by test
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