Mark A. Yarhouse is the director of the Institute for the Study of Sexual Identity and is also Professor of Psychology and the Rosemarie Scotti Hughes Endowed Chair of Christian Thought in Mental Health Practice at the Regent University School of Psychology and Counseling, where he has taught since 1998. He earned his MA in Theological Studies, MA in Clinical Psychology, and PsyD in Clinical Psychology from Wheaton College. He has published several volumes on the issue of homosexuality, including Homosexuality: The Use of Scientific Research in the Church’s Moral Debate (co-authored with Stanton Jones, IVP Academic, 2000); Ex-Gays? A Longitudinal Study of Religiously Mediated Change in Sexual Orientation (co-authored with Stanton Jones, IVP Academic, 2007); and Homosexuality and the Christian: A Guide for Pastors, Parents and Friends (Bethany House, 2010).