Who do you think is the most influential psychologist of the 20th century?

truthseekah | Student

The most notable is Freud, but I don't think the most influential. Carl Jung brought us the archetype, the collective unconscious, concepts of the introverted and extroverted personalities, and analytical psychology. Come to think of it, I believe he was a student of Freud, so I defer to the former.  Jung is my favorite, however.