The SAGE Handbook of Personality and Individual Differences: Volume II: Origins of Personality and Individual Differences

Virgil Zeigler-Hill, PhD, is an associate professor in the Department of Psychology at Oakland University. His research focuses on three interrelated areas: (1) self-esteem, (2) dark personality features (e.g., narcissism, spitefulness, psychopathy), and (3) interpersonal relationships. Much of his research reflects an integration of his primary interests (e.g., the role that dark personality features play in interpersonal relationships).

Todd K. Shackelford received his Ph.D. in evolutionary psychology in 1997 from the University of Texas at Austin. Since 2010, he is Professor and Chair of the Department of Psychology at Oakland University (http://www.oakland.edu/psychology) in Rochester, Michigan, where he is Co-Director of the Evolutionary Psychology Lab (www.ToddKShackelford.com). In 2016, he was appointed Distinguished Professor by the Oakland University Board of Trustees. He led the founding of new Ph.D. and M.S. programs (http://www.oakland.edu/psychology/grad/), which launched in 2012. Shackelford has published around 300 journal articles and his work has been cited over 22,000 times. Much of Shackelford’s research addresses sexual conflict between men and women, with a special focus on men’s physical, emotional, and sexual violence against their intimate partners. Since 2006, Shackelford has served as editor of the journal Evolutionary Psychology, and in 2014 founded the journal Evolutionary Psychological Science as Editor-in-Chief.