Chapter 4 The Trait Perspective Flashcards
Trait Approach
- People are consistent in their actions, thoughts, and feelings over time and situations.
- People are fundamentally different from each other.
- People differ from each other in many ways.
- A personality consists, in part, of a pattern of trait qualities.
- Pattern differs from one person to another.
- The intersection among these traits in any given person defines his or her personality.
Hippocrates (400 BC) and Galen
Four types of people, each reflecting an excess of certain types of body fluids:
- Choleric (irritable)
- Melancholic (depressed)
- Sanguine (optimistic)
- Phlegmatic (calm)
Carl Jung (1933)
People are introverted or extroverted
Introverted
- Prefer solitary activities
- When facing stress, introverts tend to withdraw into themselves
Extroverted
- Spend time with other
- When facing stress, extroverts tend to seek out other people
Trait Theories
- Assume people occupy different points on continuously varying dimensions
- Dimensional approach
- Differences among people are seen as quantitative, rather than qualitative
- People are seen as differing in how much various characteristics are incorporated in their personalities
- Quantitative (vs. qualitative view) with thousands of possible permutations
Types
*Distinct and discontinuous categories
Nomothetic View
- The belief that traits exist in the same way in every person
- This viewpoint sees traits as having the same psychological meaning in everyone. The belief is that people differ only in the amount of each trait.
- Everyone stands somewhere on each trait that exists
- Allows comparisons among people
- “Nomothetic”= Greek word “law”
- Uniqueness arises from unique combinations of levels on many trait dimensions
- Uniqueness of the individual expressed by where they stand on different traits
Idiographic View
- Emphasizes each person’s uniqueness
- Emphasizes that traits may differ in importance from person to person
- Traits are individualized
- Even if the connotations are the same, the trait may differ in importance, so the people can’t be compared meaningfully.
- Maybe from differences in how the traits are expressed
Factor Analysis
- Looks at the correlation among many qualities in people to detect meaningful patterns/traits.
- Statistical technique
- If two qualities correlate when assessed across many people, they may reflect a trait that contributes to both of them
- Patterns of correlation, then, may reveal trait dimensions that lie beneath the measured qualities
- Instead of looking at one correlation between two variables, a factor analysis looks at correlations among many variables.
Factor Extraction
- Distills the set of correlations to a smaller set of factors
- Reduces your matrix to a smaller number of underlying dimensions
Factors
*Shared variations (underlying commonalities) among several of the measures (rather than just two at a time)
Factor Loadings
- Correlations between the factor and each item (rating) that contributes to its existence
- Indicate how closely each quality is correlated with its corresponding factor (trait)
- Items that correlate strongly with the factor (0.40 or above)= “load on” that factor
Factor “labels”
- Indicate what the factor represents- i.e. which trait
* Subjective
Raymond Cattell
- Empirical Approach
- Lexical Criterion
- One of the first to use factor analysis
- If you start with preconceptions, you’ll lead yourself astray.
- Cattell thought that personality is captured in a set of 16 dimensions: the 16 Persoanlity Factor inventory (16PF)
Lexical Criterion
*The more words for a quality of personality, the more it probably matters.
Hans Eysenck
- We should begin instead with well-developed ideas about what we want to measure
- Began with the typology of Hippocrates and Galen and observations made by Jung and Wundt
- Study whether the types identified by Hippocrates and Galen could be created by combining high and low levels of two super traits
- Extroversion (vs. introversion)
- Concerns tendencies toward sociability, liveliness, activeness, and dominance
- Neuroticism (emotional stability)
- Concerns the ease and frequency with which the person becomes upset and distressed.
- Self-report
- Used factor analysis to refine his scales, by selecting items that loaded well, and to confirm that the scales measure two factors as he intended.
- Supertrait: extraversion
- Trait level: Sociability, dominance, assertiveness, activity, liveliness
- Habitual response level: derive from specific responses
- He believed that extraversion and neuroticism link to aspects of nervous system functioning
- There’s a third dimension in Eysenck’s view, called psychoticism- a tendency toward psychological detachment from, and lack of concern with, other people
- People high in this trait- hostile, manipulative, and impulsive