Final answer:
Jung's key contribution to psychology is the distinction between introversion and extroversion.
Explanation:
Jung's most important contribution to psychology is the concept of introversion and extroversion. Introverts derive energy from inner psychic activity, while extroverts gain energy from being socially oriented. This distinction has been widely integrated into personality psychology models, emphasizing its significance.
Learn more about Psychology here:
https://brainly.com/question/40347370
