John Mordecai Gottman (born April 26, 1942) is an American psychological researcher and clinician who did extensive work over four decades on divorce prediction and marital stability. He is also an award-winning speaker, author, and a professor emeritus in psychology. He is known for his work on marital stability and relationship analysis through scientific direct observations, many of which were published in peer-reviewed literature. The lessons derived from this work represent a partial basis for the relationship counseling movement that aims to improve relationship functioning and the avoidance of those behaviors shown by Gottman and other researchers to harm human relationships. His work has also had a major impact on the development of important concepts on social sequence analysis. Gottman is a professor emeritus of psychology at the University of Washington. He and his wife, psychologist Julie Schwartz Gottman, co-founded and lead a relationship company and therapist training entity called The Gottman Institute.