Trait theory: This term refers to an approach in psychology that focuses on identifying and measuring consistent patterns of behavior, thoughts, and emotions that make up an individual's personality.
Big Five Personality Traits:This term describes the same concept as the Five Factor Model but emphasizes the idea that these traits are broad dimensions rather than specific categories.
OCEAN model: This term is another name for the Five Factor Model, derived from the first letters of each dimension - Openness, Conscientiousness, Extraversion, Agreeableness, Neuroticism.