He is board certified in Clinical Psychology and in Clinical Child and Adolescent Psychology. A frequent author and lecturer on ethics, legal, and professional practice in psychology, Dr. Barnett is Associate Editor of Professional Psychology: Research and Practice and Editor of its Focus on Ethics section. He has served on the ethics committees of several professional associations. His most recent books are Ethics Desk Reference (with W. Brad Johnson) and Success in Mental Health Practice: Essential Tools and Strategies for Practitioners (with Steven Walfish). Dr. Barnett has been credentialed by the National Register since 1987.