Freud, Adler, James and Jung had proposed important theories during the early years of development of psychology. Even though their theories and perspectives differ to a great extent, their contribution is considered crucial to the development of modern science (O'Boyle, 2006). The roots of the science of psychology are in the theoretical positions of these psychoanalysts, and as science continues to progress with new discoveries, the importance of the early theories devised by these psychoanalysts stay at the forefront of the field.
Freud's Theories Compared to that of Jung, Adler and James