[10] With Timothy D. Wilson, Vazire co-edited the Handbook of Self-Knowledge,[11] which reviews the state of the science on how people perceive their own personality traits, behaviors, thoughts, emotions, and relationships.
[12] She continued her education in taking a PhD in social and personality psychology program at the University of Texas at Austin, where she worked under the supervision of Samuel D. Gosling.
[citation needed] Vazire joined the faculty of the Department of Psychology at Washington University in St. Louis in 2007, where she was appointed Saul and Louise Rosenzweig Chair in Personality Science.
[18] Vazire and her colleagues have examined narcissism in relation to other personality traits, such as impulsivity[19][20] Several studies have relied on experience sampling methods, which Vazire learned as a student working with Matthias Mehl and James W. Pennebaker, the developers of the Electronically Activated Recorder (EAR) methodology for sampling naturalistic daily activities and conversations.
[21] Her co-authored study with Nicholas Holtzman and Mehl, titled Sounds like a narcissist: Behavioral manifestations of narcissism in everyday life, was named the best paper of 2011 by the Journal of Research in Personality.
[23][24] Vazire and her colleagues argue against the view that users of social networking sites present altered and idealized depictions of themselves online that are not accurate reflections of their true "offline" personalities.