Which psychologist is best known for work on the traits of introversion and extraversion?

Which psychologist is best known for work on the traits of introversion and extraversion?

• A. Sigmund Freud
• B. Carl Jung
• C. B. F. Skinner
• D. Jean Piaget

Answer: (B)

Carl Jung is known for introducing the ideas of introversion and extraversion. He described introverts as oriented toward their inner thoughts and feelings, while extraverts are energized by the external world and social interaction. This distinction helps explain why some people prefer solitary, reflective activities and others seek out people and novelty. Jung’s work, especially in Psychological Types, established these terms and set the stage for later personality theories that view introversion and extraversion as a spectrum. The other psychologists listed contributed to different areas—Freud to psychoanalysis, Skinner to behaviorism, and Piaget to cognitive development—so Jung is the best fit for this trait focus.

Carl Jung is known for introducing the ideas of introversion and extraversion. He described introverts as oriented toward their inner thoughts and feelings, while extraverts are energized by the external world and social interaction. This distinction helps explain why some people prefer solitary, reflective activities and others seek out people and novelty. Jung’s work, especially in Psychological Types, established these terms and set the stage for later personality theories that view introversion and extraversion as a spectrum. The other psychologists listed contributed to different areas—Freud to psychoanalysis, Skinner to behaviorism, and Piaget to cognitive development—so Jung is the best fit for this trait focus.