History of psychology

The history of psychology can be seen as evolving through several "forces":
 * 1) First force: Psychoanalytic
 * 2) Second force: Behaviourism
 * 3) Third force: Humanistic
 * 4) Fourth force: Transpersonal (incl. family systems, feminist psychology, multicultural psychology, ecopsychology, and social constructivism and postmodernism)
 * 5) Fifth force: Social justice and advocacy
 * 6) Sixth force: Integrative, inclusive, and holistic