Joseph Nicolosi (January 24, 1947 – March 8, 2017) was an American clinical psychologist who advocated and practised "reparative therapy", a form of the pseudoscientific treatment of conversion therapy that he claimed could help people overcome or mitigate their homosexual desires and replace them with heterosexual ones.[2] Nicolosi was a founder and president of the National Association for Research and Therapy of Homosexuality (NARTH).[3] Medical institutions warn that conversion therapy is ineffective and may be harmful, and that there is no evidence that sexual orientation can be changed by such treatments.[4][5][6][7]
^Haldeman, Douglas C. (December 1999). "The Pseudo-science of Sexual Orientation Conversion Therapy"(PDF). Angles: The Policy Journal of the Institute for Gay and Lesbian Strategic Studies. 4 (1): 1–4. Archived from the original(PDF) on January 7, 2018. Retrieved March 16, 2018. Conversion therapy can be harmful.
^Drescher, Jack; Zucker, Kenneth, eds. (2006), Ex-Gay Research: Analyzing the Spitzer Study and Its Relation to Science, Religion, Politics, and Culture, New York: Harrington Park Press, ISBN978-1-56023-557-6