Emily Grijalva, University of Illinois at Urbana-Champaign (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption Illinois professor of psychology Emily Grijalva and her research team analyzed past research studies on narcissism and its relationship to leadership to find that the most effective leaders have moderate levels of narcissism. Credit L. Brian Stauffer Usage Restrictions This photo may only be used in conjunction with information from this release. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.