Final answer:
The trait theory is the analysis of the structure of personality by classifying similarities and differences in personality characteristics. It attempts to explain our personality through identifying stable characteristics. The most popular theory is the Five Factor Model, which includes openness, conscientiousness, extroversion, agreeableness, and neuroticism.
Step-by-step explanation:
The trait theory can best be defined as the analysis of the structure of personality by classifying similarities and differences in personality characteristics. Trait theorists attempt to explain our personality by identifying our stable characteristics and ways of behaving.
The most widely accepted theory today is the Five Factor Model, which includes dimensions of openness, conscientiousness, extroversion, agreeableness, and neuroticism.