The document summarizes several theories of personality, including psychoanalytic, humanistic, trait, and learning approaches. It describes Freud's structural model of the id, ego, and superego. It also outlines Jung's concepts of the collective unconscious and archetypes. Maslow's hierarchy of needs and Rogers' fully functioning person are discussed as humanistic theories. Trait theories view personality traits as stable over time and across situations. Social cognitive theory examines observational learning and self-regulation. Personality can be measured through objective tests like the MMPI or projective tests like the Rorschach.