The Society for Mathematical Psychology promotes research and communication in mathematical psychology and related disciplines.
Mathematical psychology includes theoretical work using mathematical methods, formal logic, and computer simulation. The society's official journals are the Journal of Mathematical Psychology and Computational Brain & Behavior.
The World Rock Paper Scissors Association (WRPSA) promotes professional Rock Paper Scissors competitions and strategies.
The Anxiety and Depression Association of America (ADAA) is dedicated to the prevention, treatment, and cure of anxiety, depression, and related disorders through education, practice, and research.
The Southwestern Psychological Association (SWPA) is the official American Psychological Association (APA) affiliate for the Southwestern region of the United States, dedicated to promoting and strengthening psychology's scientific, professional, and educational facets.