He is active in a number of professional organizations at the national, regional, and local levels. He served as the Director of the Student Success Center at the Georgia State University Counseling Center and was the Coordinator of Career Services at both the Georgia State University Counseling Center and the University of Georgia Counseling and Testing Center. Dr. Matthews has offered programs on numerous topics including stress management, men's issues, relationship enhancement, and sport performance enhancement. His research has been presented at the American Psychological Association, the American College Personnel Association, and in a variety of other forums.