Personality: Theories, Traits, and Assessment in Psychology

Personality: Theories, Traits, and Assessment

Early Trait Research

Personality traits are specific psychological characteristics that form part of an individual's personality. Early research focused on identifying and categorizing these traits to predict behavior.

• Definition: A personality trait is a consistent pattern of thought, feeling, or behavior.

• Gordon Allport: Identified 4,500 words in English to describe personality traits, organizing them into three categories:

  • Cardinal traits: Dominant traits that shape most of a person's behavior (e.g., nonconformity).

  • Central traits: Major characteristics (e.g., creativity, loyalty).

  • Secondary traits: Traits that appear in specific situations (e.g., preferences, attitudes).

• Example: A person with cardinal nonconformist traits may consistently challenge social norms.

Big Five (Five Factor Model)

The Big Five model is the most widely accepted framework for understanding personality structure. It identifies five broad dimensions:

Factor	High Scorer	Low Scorer
Openness	Imaginative, creative	Conventional, practical
Conscientiousness	Organized, reliable	Careless, impulsive
Extraversion	Outgoing, energetic	Reserved, solitary
Agreeableness	Trusting, kind	Suspicious, antagonistic
Neuroticism	Anxious, moody	Emotionally stable

• Universality: Traits appear across cultures, though emphasis varies.

• Predicts Outcomes: Conscientiousness predicts academic/job success; neuroticism linked to anxiety.

• Changes Over Time: Traits like agreeableness and conscientiousness tend to increase with age.

• Example: Extraverts are often happier due to social engagement.

HEXACO Model

The HEXACO model expands the Big Five by adding a sixth factor: Honesty-Humility.

• High Honesty-Humility: Sincere, honest, modest, altruistic.

• Low Honesty-Humility: Deceitful, greedy, pompous, manipulative.

• Application: Used to study ethical and prosocial behavior.

Stability of Personality Traits

Personality traits are generally stable over time, but some changes occur due to maturation.

• Maturity Principle: People become more dominant, agreeable, conscientious, and emotionally stable as they age.

• Infant Temperament: Predicts adult personality (e.g., under-controlled children may show more externalizing behaviors).

Behaviourist Perspectives

Behaviourist theories propose that personality is shaped by learned behavior patterns through reinforcement.

• Key Figure: B.F. Skinner

• Learning: Personality is a collection of behaviors learned through reinforcement.

• Example: Sociability at parties and meetings may result from positive reinforcement.

Social Cognitive Approaches

Social cognitive theories emphasize the interaction between individuals and their environment in shaping personality.

• Key Figure: Albert Bandura

• Observational Learning: People learn behaviors by watching others.

• Reciprocal Determinism: Personality is shaped by the interaction of behavior, cognition, and environment.

• Example: Shy individuals may avoid social settings due to personal and environmental factors.

Self-Efficacy

Self-efficacy is the belief in one's ability to succeed in specific situations, influencing personality development.

• High Self-Efficacy: Leads to confidence and persistence.

• Development: Influenced by prior successes/failures and encouragement from others.

• Example: Students with high self-efficacy are more likely to engage in problem-solving tasks.

Individualist vs. Collectivist Cultures

Cultural context shapes personality traits and values.

Individualist	Collectivist
Independence, competition, personal achievement	Social harmony, group needs, respectfulness
Western nations (U.S., England, Australia)	Asia, Africa, South America
Traits: self-confidence, openness, assertiveness	Traits: humility, empathy, cooperativeness

Biological Approach

Biological theories suggest that personality has a genetic basis.

• Minnesota Twin Study: Identical twins raised apart show similar personality traits, indicating genetic influence.

• Application: Used to study heritability of traits.

Psychoanalytic Theory

Freud's psychoanalytic theory posits that unconscious forces shape personality.

• Unconscious: Contains memories, urges, and instincts outside of awareness.

• Three Components:

  • Id: Pleasure principle, unconscious urges.

  • Ego: Reality principle, executive function.

  • Superego: Moral guardian, ideal self.

• Example: Conflict between id (immediate gratification) and superego (moral standards) is mediated by the ego.

Psychosexual Stages of Development

Freud proposed that personality develops through a series of stages focused on erogenous zones.

Stage	Age	Focus	Fixation Outcome
Oral	0-1 yr	Sucking, eating	Smoking, overeating, talking
Anal	2-4 yrs	Toilet training	Messy/sloppy or clean/stingy
Phallic	4-6 yrs	Genitals	Oedipus/Elektra complex
Latency	6-12 yrs	Dormant sexual desires	Focus on skills/hobbies
Genital	12+ yrs	Mature sexuality	Intimacy difficulties

Defense Mechanisms

Defense mechanisms are unconscious strategies used by the ego to manage conflict and reduce anxiety.

• Repression: Blocking thoughts from consciousness.

• Denial: Refusing to acknowledge reality.

• Regression: Reverting to earlier developmental stages.

• Projection: Attributing one's own impulses to others.

• Displacement: Redirecting impulses to a safer target.

Neo-Freudians

Neo-Freudians expanded on Freud's ideas, introducing new concepts and challenging some assumptions.

• Carl Jung: Proposed the collective unconscious and archetypes; introduced introversion vs. extraversion.

• Karen Horney: Critiqued Freud's gender theories, emphasizing social status over anatomy.

Birth Order and Personality

Research suggests birth order has a minor effect on intelligence but little impact on personality traits.

• Firstborns: Slightly higher intelligence scores.

• No lasting effects: On extraversion, emotional stability, agreeableness, conscientiousness, imagination.

Sibship Size & Personality

The number of siblings may influence certain personality traits.

• More siblings: Higher honesty-humility and agreeableness.

• Only children: Lowest honesty-humility and agreeableness, slightly higher openness.

Humanistic Approaches

Humanistic theories emphasize the unique and positive qualities of human experience and free will.

• Key Figures: Abraham Maslow, Carl Rogers

• Maslow: Exceptional people share creativity, realistic thinking, concern for others.

• Rogers: Self-actualization and positive regard are central; discrepancy between ideal and true self leads to anxiety, overcome by unconditional positive regard.

Assessment: Self-Report Measures

Self-report inventories are commonly used to assess personality traits and disorders.

• MMPI-2: 567 items, true/false/cannot say; identifies psychological difficulties and predicts behavior.

• NEO-PI-R: Measures Big Five traits; sample items assess sociability, impulsivity, dominance, etc.

Projective Tests

Projective tests present ambiguous stimuli to assess unconscious aspects of personality.

• Examples: Rorschach Inkblot Test, Thematic Apperception Test (TAT)

• Interpretation: Requires skill; subjectivity is a concern.

The Dark Triad

The Dark Triad refers to three socially aversive personality traits: narcissism, Machiavellianism, and psychopathy.

Trait	Characteristics
Narcissism	Grandiosity, entitlement, self-love, desire for admiration
Machiavellianism	Cynical, manipulative, lack of empathy, strategic
Psychopathy	Impulsivity, thrill-seeking, low empathy, callousness

• Associated Behaviors: Aggression, low affective empathy, hedonism, counterproductive workplace behaviors.

• Dating Strategies: Short-term focus, manipulation, game-playing.

Dark Tetrad: Sadism

Sadism is sometimes considered a fourth 'dark' trait, involving pleasure from inflicting pain or suffering.

• Characteristics: Cruelty, manipulation, low agreeableness, low emotional regulation.

Self-Report Items for Dark Traits

• Examples include statements about secrecy, manipulation, influencing others, enjoying others' discomfort, and seeking payback.

Additional info:

• Tables and figures have been recreated in text format for clarity.

• All major personality theories and assessment methods relevant to college-level psychology have been covered.