Hyoun Sook Lim ’15 Ph.D. Posted on October 11, 2015August 26, 2019 by Hyoun Sook Lim ’15 Ph.D. Hyoun Sook Lim ’15 Ph.D. Hyoun Sook Lim ’15 Ph.D. Hyuon Sook Lim ’15 Ph.D. has successfully defended her dissertation titled “How and when does psychological empowerment affect individual effectiveness: A multilevel investigation.”