Unit 3.1: Dispositional domain Flashcards
What are traits? (two basic formulations)
internal properties of people that cause behaviour
simple descriptions/ summaries of a person’s behaviour
Can traits be equated with external behaviour?
no, they are inner needs, impulses or desires
-> regarless of whether they’re expressed or not
What can traits (as internal properties) be useful for?
ruling out other causes of behaviour
What is the difference between traits as internal properties vs. descriptive summaries?
descriptive summaries:
no assumptions on internality or causality
behaviour as part of personality
Which 3 key elements to identify traits did the “act frequency formulation of traits” establish?
- Act nomination
- Prototypical judgement
- Recording act performance
What is the “Act frequency formulation of traits” often criticised for?
doesnt specify how much context is needed
only applicable to visible behaviours
What are the three fundamental approaches to identify the most important traits?
Lexical approach
Statistical approach
Theoretical approach
What is the starting point of the lexical approach? What are the criteria for it to work and what is a major problem?
lexical hypothesis: all individual differences encoded in natural language
criteria: synonym frequency and cross-cultural universality
problem: focuses on adjectives (doesnt account for other parts of speech)
When is the statistical approach applied and what is its use? Whats the most common type?
broad set of items gathered
-> approach applied by making people grade themselves
most common: factor analysis
useful to reduce wide range of adjectives into smaller sets
Factor analysis
identifies and groups items that covary
Why is the theoretical approach important?
theory determines which variables are important
PEN Model
by Eysenck
Psychoticism: aggressive, egocentric, antisocial, impulsive behaviours
Extraversion: sociable, high level of activity
Neuroticism: emotionally unstable, high reactivity to negative emotions, anxious
Hierarchical structure of the PEN model
Super traits
Traits
Habitual acts
Specific acts
What does the PEN model focus on?
heritability in the identifiable physiological substrate (structure)
What do Extraverion, Neuroticism and Psychoticism relate to on a physiological basis?
Extraversion: CNS arousal/ reactivity
Neuroticism: greater lability/ ability to change ANS
Psychoticism: higher testorsterone level and lower levels of the neurotransmitter inhibiting aminoacid MAO