Descriptive Models

Gordon Allport

Gordon Allport: father of trait approach

  • Lexical Approach: all important personality characteristics should be reflected in the language that human use to describe other people
  • Nomothetic Approach: people can be described along a single dimension according to their level of particular trait
    • Most modern assessment approach. Ex. Big-Five
    • Focus on research, not on specific individual
  • Idiographic Approach: identifies the combination of traits that bes accounts for the personality of individual
    • Ex. MBTI
    • Focus on individual
  • Cardinal Traits: dominate a person’s personality; connected to persona
  • Central Traits: traits that best describe a person (limited amount)
  • Secondary Traits: less relevant traits, only present in certain situations

Factor Analysis

  • By Raymond Cattell
  • Was used to determine structure of human personality
  • Factor Analysis: does score on particular item tend to group together
  • Found large groups of traits could reduced down to 16 core personality traits

The 5 Factor Model

Five-Factor Model

  • Connected to the temperament dimensions
  • Openness: (+) - forgive people; (-) - substance abuse (get bored)
  • Conscienceless: (+) - stable job
  • Extraversion: (+) - higher satisfaction in intimate relationship
  • Agreeableness
  • Neuroticism : (-) - mental health issue
  • The result is a percentile score, compared to average results of population
    • Assume normal distribution
    • Middle => variability of trait depending on situation
    • Extreme => consistent across situation

HEXACO Model

  • Other Model
  • Honesty/humility as the 6th factor
  • High: honest, humble, not interesting in wealth, not manipulative
  • Low: dishonest, strong sense of self, motivated material, manipulative

Dark Triad

Reflection: PSY230 Packback Discussion

  • Machiavellianism: manipulation, self-interest, disregard for others
  • Narcissism: grandiosity, egotism, entitlement
  • Psychopathy: remorselessness, impulsively, lack of empathy
  • Not personality disorder, but over the level, can become clinical
    • Narcissism -> narcissism clinical disorder
    • Psychopathy -> antisocial disorder
  • Lack empathy, even though with similar level of cognitive empathy
    • Understand, but cannot feel it
  • Connection to Big-Five
    • Low in Agreeableness
    • Psychopathy is related to low Neuroticism (no negative emotion)

Health and Social Influence

Type A&B Personality

  • Type A: have a higher competitive achievement striving.
    • Respond to frustrating situations with anger
    • Tend to dominate a group discussion
    • Health: correlated with cardio-vascular disease

Optimism & Pessimism

  • Dispositional optimism: extend to which people adopt to positive viewpoints
    • Health: helps coping, well-being
  • Active strategies for coping
    • Healthy strategies
    • Problem solving, cognitive restructuring (Viktor Frankl’s attitude of suffering), express emotions, social support
  • Avoidance strategies
    • Less healthy strategy
    • Problem avoidance, wishful thinking, self-criticism, social withdraw

Physiological Stress Response

  • Acute stress: short term stress (traffic jam)
  • Chronic stress: long term stress (abuse relationship)
  • People all experience stress, the important thing is how to recover from stress
  • Allostasis: how the body respond to stressors to maintain homeostasis
    • Advantage for optimistic people
Biopsychosocial Model of Stress


Tend to perceive things as challenge or a threat (in goal-orientated task)


  • Treat response: a pattern of cardiovascular stress response exhibited when one perceives they cannot handle the demands of a situation
  • Character: increase strength of heart contraction, increased heart rate, decreased blood output, constriction of cardiovascular vessels
  • Zajonc’s Model social facilitation ★

Social Anxiety

  • Social Anxiety: extreme anxiety surrounding social interactions
    • Increased Physiological arousal
    • Inability to concentrate
    • Feelings of nervousness
  • No direct association with Introversion
  • Can be explained in part of high evaluation apprehension

Social Cognitive Model

Walter Mischel

Social-cognitive Process

Key Factors

  • Encoding: categories of encoding information about one’s self, other, events, and situation
  • Expectations and Beliefs: expectations for what will happen in certain situations
    • For outcomes of behaviors, and for one’s personal efficacy, in Self Schema
  • Affects: feelings, emotions, and emotional responses
    • Emotions somewhat shapes part of the personality
  • Goals and Values: individual goal, value, and life pro
  • Competencies and Self-Regulatory Plans: perceived abilities, plans, and strategies
    • Related to Conscienceless
    • The goal of the Marshmallow Study
  • Consistency of personality is due to identification of situation-behavior relationship that become behavior signature of personality
    • High consistency within situation
    • Inconsistency with variability depending on situation

Consistency of Traits

  • Personality have both a biological/genetic and environmental basis
    • Extraversion variability explained by genetic
  • Big Five traits and relation to brain regions

Situational Variability

  • By Kurt Lewin (father of social psychology)
  • Argues that behavior is a function of a person and their environment
  • Unique: book’s argument
  • Little evidence for cross-situational consistency
  • Corresponsive Principle

Whole-Trait Theory

Whole Trait Theory Fleeson, Jayawickreme

  • 2 distinct parts of personality: Descriptive and Explanatory aspects of traits
  • Descriptive parts: density distribution (Big-Five Model)
    • Measure variation of the trait (stability)
  • Explanatory parts: social-cognitive mechanism (Social Cognitive Model)
    • Explain cause of variation
  • Measurement (descriptive)
    • Parameter: location on dimension; width captures variability within an individual behavior
    • Shape: normal or skewed
Input ==> Intermediates ==> Output
  • Input: environmental event & internal event
  • Intermediates: activation of goals, initiation of homeostatic forces
  • Output: change in manifestation of the traits Study: Emotional and its relationship to Big-Five Model
  • Methods:
    • Ecological momentary assessment
    • Asked about state personality, what they were doing, and their affect
    • Looked at within and between person variation
  • Result
    • Openness: positive mood -> high
    • Conscienceless: positive mood -> little higher
    • Extraversion: positive mood -> high
    • Agreeableness: positive mood -> high
    • Neuroticism: positive mood -> low ★

Change in Personality

The Personality Myth