He has taught courses in ethics, practicum/internship, mental health counseling, diagnosis and treatment planning, and psychological testing. Prior to his appointment at MTSU, Dr. Quarto was the co-owner of a private practice where he specialized in providing diagnostic and treatment services to children, adolescents and adults with Attention Deficit/Hyperactivity Disorder (AD/HD). He maintains involvement in professional organizations and is interested in enhancing online continuing education in the counseling and psychology professions.