Psychology 305A Lecture 5 Part 1 Trait Taxonomies...
Transcript of Psychology 305A Lecture 5 Part 1 Trait Taxonomies...
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Psychology 305ALecture 5 Part 1
Trait TaxonomiesPersonality Change and Stability
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¨ Theoretical approach: Hans Eysenck¡ Personality taxonomy should be rooted in biology
¨ 3 major traits of interest: “PEN”¡ Psychoticism (related to testosterone level)¡ Extraversion (related to physiological arousal)¡ Neuroticism (related to fluctuations in
autonomic nervous system)
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3Circumplex taxonomy
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¨ Broad level factors are statistically independent¡ Your level on one factor does not have any relation
to your level on another factor¡ Possible to be high N + high E, high N + low E, low
N + low E, or low N + high E
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Gob Bluth: Low N, High ELow N: Not concerned about anythingHigh E: High energy, Charming and outgoing,
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¨ Broad level factors are statistically independent¡ Your level on one factor does not have any relation
to your level on another factor¡ Possible to be high N + high E, high N + low E, low
N + low E, or low N + high E
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Buster Bluth: High N, Low EHigh N: Anxious, Pessimistic, Low E: Does not have many friends, Only hangs out with his Mom
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¨ Not all-inclusive¡ Other empirical studies found more than 3 factors
¨ Other traits show heritability¡ e.g., conscientiousness
¨ Other taxonomies developed to address issues¡ Wiggins’ theory of interpersonal traits
ú Agency + Communion¡ Cattell’s 16¡ The Five Factor Model (FFM)
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¨ Openness ¡ Curious and unconventional
¨ Conscientiousness¡ Ordered and persistent
¨ Extraversion¡ Exuberant and sociable
¨ Agreeableness¡ Caring and considerate
¨ Neuroticism¡ Emotional and anxious
9Costa & McCrae, 1992; Goldberg, 1981
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¨ Lexical studies of the dictionary¡ Started with 17,953 trait terms (Allport & Odbert)
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ArtisticCuriousCulturedImaginativeRefinedConventionalCautiousIndustriousOrderlyResponsibleAssertiveEnthusiasticEnergetic
AltruisticCaringModestTenderTrustingAnxiousAngryDepressedSelf-ConsciousVulnerableGregariousWarm
OpennessConscientiousnessExtraversionAgreeablenessNeuroticism
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¨ Factor analysis repeatedly finds five factors¡ Cross-cultural replication¡ Genetic links¡ Cross-species replication
ú e.g., dogs, hyenas, monkeys
11Extraverted chimp Introverted chimp
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Openness
Fantasy Aesthetics Feelings Ideas
Actions Values
Open people remember dreams better, are more creative, and enjoy novel experiences
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Conscientiousness
Competence Order Dutifulness Achievement-striving
Self-Discipline Deliberation
Conscientious people are successful in school and work, and have more stable, committed romantic relationships
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Extraversion
Gregariousness Activity level Assertiveness Warmth
Excitement Seeking
Positive Emotions
Extraverts love social attention and leadership, and are happier
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Agreeableness
Trust Altruism Modesty Compliance
Straight-forwardness
Tender-mindedness
Agreeable people resolve conflicts, are generous, and are well-liked
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Neuroticism
Anxiety Depression Vulnerability Impulsiveness
Self-consciousness
AngryHostility
Neurotic people are highly emotional, have mood swings and instability in relationships, and are more fatigued
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¨ Physical attractiveness and promiscuity¨ Positive evaluation and negative evaluation
¡ “Big 7”¨ Honesty/humility
¡ HEXACO model¨ Religiosity/spirituality
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¨ Extraversion¡ PEN Extraversion
¨ Neuroticism¡ PEN Neuroticism
¨ Agreeableness¡ PEN Psychoticism (low)
¨ Conscientiousness¡ PEN Psychoticism (low)
¨ Openness to Experience¡ PEN?
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¨ By definition, traits are stable dispositions across: ¡ Situations¡ Time
¨ Traits are NOT completely “set like plaster”
211970 & 1980s---------------------------------------------2006
à
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¨ Mean-level change: In a population, people’s average level of a trait at different ages
¨ Are people on average more extraverted when they are younger or older?
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¨ Cross-sectional study¡ Sample of approximately 130,000 adults reported Big
5 personality traits¡ Representative of population in US and Canada¡ Childhood to old age
23Srivastava, John, Gosling, & Potter, 2003
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Lifespan Cross-Sectional Study
2.50
2.70
2.90
3.10
3.30
3.50
3.70
9 to 12 13 to 17 18 to 22 23 to 30 31 to 40 41 to 50 51 to 60 61 to 70 71 to 90
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E
9-12 13-17 18-22 23-30 31-40 41-50 51-60 61-70 71-80
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Lifespan Cross-Sectional Study
2.50
2.70
2.90
3.10
3.30
3.50
3.70
3.90
4.10
9 to 12 13 to 17 18 to 22 23 to 30 31 to 40 41 to 50 51 to 60 61 to 70 71 to 90
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E
A
9-12 13-17 18-22 23-30 31-40 41-50 51-60 61-70 71-80
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Lifespan Cross-Sectional Study
2.50
2.70
2.90
3.10
3.30
3.50
3.70
3.90
4.10
9 to 12 13 to 17 18 to 22 23 to 30 31 to 40 41 to 50 51 to 60 61 to 70 71 to 90
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E
A
C
9-12 13-17 18-22 23-30 31-40 41-50 51-60 61-70 71-80
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Lifespan Cross-Sectional Study
2.50
2.70
2.90
3.10
3.30
3.50
3.70
3.90
4.10
9 to 12 13 to 17 18 to 22 23 to 30 31 to 40 41 to 50 51 to 60 61 to 70 71 to 90
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E
A
C
N
9-12 13-17 18-22 23-30 31-40 41-50 51-60 61-70 71-80
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Lifespan Cross-Sectional Study
2.50
2.70
2.90
3.10
3.30
3.50
3.70
3.90
4.10
9 to 12 13 to 17 18 to 22 23 to 30 31 to 40 41 to 50 51 to 60 61 to 70 71 to 90
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E
A
OC
N
9-12 13-17 18-22 23-30 31-40 41-50 51-60 61-70 71-80
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¨ Study compared personality scores at beginning and end of university among 270 students
Two Assessments¡ Year 1 (beginning of first year)¡ Year 4 (end of senior year)
¨ Which traits do you think increased? Decreased?
29Robins, Fraley, Roberts, & Trzesniewski, 2001
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Big Five Dimension Change during universityExtraversion 0Agreeableness +Conscientiousness +Openness +Neuroticism -
Maturity principle: People tend to increase on traits that promote optimal behavior in adult social roles, and decrease on less socially desirable traits
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¨ Mean-level change¨ Rank-order stability
¡ Consistency of individual differences on traits¡ Is the most extraverted child still the most
extraverted adult?¡ Is the least agreeable college student still the least
agreeable 40 year-old?
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¨ Imagine we assess three individuals, A, B, and C, at two times and get the following results:
¨ Has the mean-level changed? Has the rank-order changed?
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Individual Extraversion Level at Time 1
Extraversion Level at Time 2
A 2 3B 3 4C 4 5
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¨ Meta-analysis¡ Compiled results from all studies ever done on
personality change and development¡ Compared “personality consistency” across ages
ú At which ages was the correlation between personality at T1 and personality at T2 highest?
ú Correlation: Same group of people measured at two ages e.g., 3 & 4, 23 & 29, 55 & 72 High correlation implies high personality consistency
33Roberts & DelVecchio, 2000
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Cor
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Age Range
Personality Consistency at Different Ages
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Personality is somewhat inconsistent in childhood and young adulthoodPersonality becomes increasingly stable throughout middle agePersonality is extremely stable in old age
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¨ Mean-level¨ Rank-order
¨ Why does personality change or stay stable?
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¨ Person-environment transactions¡ People select situations based on their personalities
ú e.g., a conscientious individual enrolls in an honor’s class¡ Situations in turn influence people’s personalities
ú e.g., an honors student becomes more conscientious
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à à
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¨ How many of you have studied abroad?¨ Why? Was it because of your personality?¨ How did it change who you were?
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¨ 1,134 students tracked across school year¡ Half study abroad, half at home
¨ Who studies abroad?¡ Extraverts
38Zimmerman & Neyer, 2013
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¨ 1,134 students tracked across school year¡ Half study abroad, half at home
¨ How does studying abroad change personality?¡ Increases in openness and agreeableness
39Zimmerman & Neyer, 2013
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Trait High levels of trait leads to
Low levels of trait leads to
O Becoming unemployed
C Getting divorced
E Moving in with partner
A Getting divorced
N Living at homeGetting divorced
Getting married
Sample of ~ 15,000 German adults, followed over four years
Specht, Egloff, & Schmuckle, 2011; 2012
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Trait Events lead to increases in the trait
Events lead to decreases in the trait
O Getting divorced Getting married
C Starting first job Retiring
E Getting married
A Having a baby
N Moving out of parent’s home
Sample of ~ 15,000 German adults, followed over four years
Specht, Egloff, & Schmuckle, 2011; 2012
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¨ Borghuis et al. (Oct. 2017) “Big Five Personality Stability, Change, and Codevelopment Across Adolescence and Early Adulthood. ¡ N = 2230 Dutch adolescents, followed from ~age 12
to 22. ¡ Participants interviewed annually in their homes
about personality and relationship quality. ¡ What kind of design is this? What is the IV? What is
the DV?
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¨ Findings¡ 1 year rank-order stability of Big 5 traits increases up
to mid-adolescence and then level out. ¡ Mean-level changes moderated by gender
ú Males:+O, U shaped curve for C, stable E, +A, stable Nú Females: -O, +C, U shaped curve for E and N, +A
¡ Big individual differences in individual-trait change for E, C, and N.
¡ Individual personality changes unrelated to friends and siblings.
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¨ Personality changes across the lifespan¡ Mean-level shifts
¨ Personality is consistent across the lifespan¡ Different levels of consistency emerge in childhood,
adulthood, and old age¨ Change and consistency is dictated in part by
person-environment transactions¡ Who we are leads us to take on certain roles¡ Our roles in turn shape who we are
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¨ Trait approach (wrap-up)¨ Genetics (begin)
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