Trait Theory: Trait theory is a psychological perspective that focuses on identifying and measuring consistent patterns of behavior or characteristics (traits) that define individuals.
Personality Testing: Personality testing involves the use of standardized assessments and questionnaires to measure various aspects of an individual's personality, including measurable traits.
Big Five Personality Traits: The Big Five Personality Traits are five broad dimensions (openness, conscientiousness, extraversion, agreeableness, neuroticism) that are commonly used to assess and describe an individual's personality based on measurable trait scores.