Personality: Definition, Theories, and Development

A comprehensive study of the relatively stable, consistent, and enduring patterns of thoughts, feelings, and behaviours that characterise an individual. This guide covers psychological determinants, major theoretical frameworks, developmental stages, and clinical assessment methods.

1. Definition of Personality

Personality refers to the relatively stable, consistent, and enduring pattern of thoughts, feelings (emotions), and behaviour that characterises an individual and distinguishes that individual from others. The term derives from the Latin persona, meaning the mask worn by actors in classical theatre.

• It is the sum total of a person’s characteristic reactions to the environment and to other people.
• It includes both temperament (inborn, biologically based tendencies such as activity level and emotional reactivity) and character (morals, values, and attitudes acquired through learning and experience).
• Personality is relatively stable across situations and over time, but it is not rigid—it matures and adapts throughout life.

Determinants of Personality

2. Theories of Personality

A. Psychoanalytic Theory (Sigmund Freud)

Focuses on unconscious processes and early childhood experiences. Freud suggested that personality is formed through stages of psychosexual development. For example, fixation at the anal stage may produce traits of orderliness, obstinacy, or miserliness.

B. Type Theories

These theories classify people into discrete categories. Historical and modern examples include:

• Hippocrates’ Humoral Temperaments: Sanguine, choleric, melancholic, and phlegmatic.
• Sheldon’s Somatotypes: Relating body build to personality.
• Jung’s Types: Focused on introversion versus extraversion.

C. Trait Theories

Traits are relatively stable dimensions in which individuals vary by degree. Major trait theorists include:

• Allport: Distinguished between cardinal traits (those that dominate a life), central traits (5–10 core descriptors), and secondary traits (situation-specific preferences).
• Cattell: Identified 16 source traits using factor analysis, leading to the 16PF Questionnaire.
• Eysenck: Proposed three major dimensions: Psychoticism, Extraversion, and Neuroticism (PEN model).
• The Big Five (OCEAN): Currently the most widely accepted trait model, consisting of Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism.

D. Humanistic Theory

• Maslow: Personality is directed toward growth and the progressive satisfaction of a hierarchy of needs, culminating in self-actualisation (realising one’s full potential).
• Carl Rogers: The self-concept develops through interactions; people strive toward self-actualisation when they receive unconditional positive regard. Incongruence between the real self and ideal self produces anxiety.

E. Behavioural and Social-Learning Theory

• Skinner: Personality is the sum of learned behaviour maintained by its consequences (reinforcement and punishment).
• Bandura: Personality develops through observational learning (modelling). Behaviour results from reciprocal interaction among personal factors, behaviour, and the environment. Belief in one’s capability (self-efficacy) is central.
• Rotter: Focused on locus of control—internality (events result from one's own actions) versus externality (events result from chance or powerful others).

3. Development of Personality

Personality develops through the continuous interaction of nature (heredity) and nurture (environment). Temperament is evident in infancy, while character matures through childhood and adolescence.

Erikson’s Psychosocial Theory

Erikson describes eight stages, each presenting a conflict whose resolution shapes personality:

4. Assessment of Personality

Clinical assessment of personality is used to understand individual differences and screen for psychopathology.

Key Points

• Consistency: Personality describes the stable patterns of an individual across time and situations.
• The Big Five: Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism provide a comprehensive framework for traits.
• Humanistic View: Emphasises the drive toward self-actualisation and personal growth.
• Clinical Utility: Personality assessment aids in diagnosing personality disorders and planning therapeutic interventions.