Personality Psychology: Theories and Development

Major Theories of Personality

Personality theories can be categorized into three primary perspectives:

• Intrapersonal Factors: These focus on internal elements such as psychoanalysis and humanistic approaches, which classify personality into specific types.
• Situational Factors: These emphasize environmental influences, viewing personality as a set of learned habits expressed in established behavioral patterns of the organism, as proposed by Watson and Skinner.
• Interactionist Perspective: This suggests personality results from the interaction between the subject and their environment, involving cognitive and affective processes developed within a social context, as seen in the work of Bandura, Erikson, and Rotter.

Sigmund Freud's Psychoanalytic Theory

Freud proposed that personality arises from conflicts between different parts of the self. He identified three instances of personality that emerge during a child's psychosexual development:

• The Id (Es): Governed by the pleasure principle. It is centered on the mouth and the oral phase (ages 0-2).
• The Ego (Ich): Governed by the reality principle. It emerges during the anal phase (ages 2-3) as the child learns that authority limits their impulses.
• The Superego (Über-Ich): Represents the moral conscience. It develops through the Oedipus complex during the phallic stage (ages 4-5), followed by the latency period (ages 6-11) and the genital stage (ages 12+).

The Big Five Personality Traits

The Five-Factor Model identifies five broad dimensions of personality:

• Emotional Stability: Calm and secure vs. anxious and insecure.
• Extraversion: Sociable and affectionate vs. reserved and retracted.
• Open-mindedness: Imaginative and independent vs. practical and conforming.
• Agreeableness: Friendly and cooperative vs. suspicious and uncooperative.
• Responsibility (Conscientiousness): Organized and disciplined vs. messy and impulsive.

Objective Personality Assessment Tests

Unlike projective tests, these objective inventories use standardized items for assessment:

• 16PF: Cattell’s 16 Personality Factors test, consisting of 374 items.
• NEO-PI-R: The Revised NEO Personality Inventory, which assesses the Big Five traits through 240 items.
• MMPI: The Minnesota Multiphasic Personality Inventory, containing approximately 700 items.

Psychological Defense Mechanisms

Defense mechanisms are unconscious strategies used to cope with reality and maintain self-image:

• Repression: Pushing uncomfortable thoughts, guilt, or shame into the unconscious.
• Negation (Denial): Refusing to recognize a frightening or uncomfortable reality.
• Projection: Attributing one's own unacceptable impulses to others.
• Identification: Adopting the attitudes or successes of someone else as one's own.
• Intellectualization: Theorizing about a problem to avoid dealing with its practical or emotional reality.
• Displacement: Shifting repressed emotions from their original source to a safer target.
• Reaction Formation: Replacing an unacceptable feeling with its opposite.
• Sublimation: Converting socially unacceptable impulses into productive, positive values.
• Regression: Returning to behaviors characteristic of earlier developmental stages to avoid current stressors.

Identity and Development in Adolescence

Adolescence is a critical period for cognitive and social development, characterized by specific phenomena:

• Imaginary Audience: The conviction that others are as interested in the adolescent's appearance and actions as they are themselves.
• Personal Fable: The belief that one's experiences are unique and that they are destined for great fortune or are exempt from the consequences that affect others.

Adolescents also navigate different forms of identity:

• Fuzzy (Identity Diffusion): No commitment to any specific life options.
• Mortgage (Foreclosure): Committing to an identity based on the expectations of others.
• Moratorium: Actively exploring options but unable to make a final decision.
• Achieved: Successfully assuming personal decisions and accepting their results.