S. Mark Kopta, Ph.D., H.S.P.P. is Professor, Department of Psychology, at the University of Evansville. He served as Chair, Department of Psychology, for 18 years. He is currently Founder and Executive Director of the CelestHealth Research Group, a group of leading researchers in behavioral health and psychotherapy. Click on the Research link for more information on CHRG. He received his doctoral degree from Northwestern University.