Arkin’s research concerned the self in social interaction, with specialemphasis on the uncertain self. Arkin developed the Subjective Overachievement Scale in 2001 to tap feelings of self-doubt coupled with a performance outcome concerns. He was the editor of the books Most Underappreciated: 50 Prominent SocialPsychologists Describe Their Most Unloved Work, ''Handbook of the Uncertain Self, and Handbook of Personal Security''.