For most of my academic career, I have been pursuing issues within two broad areas of inquiry. One area is the self and social identity. I have been particularly interested in examining the role of negative self-guides in processing information about the self. This work has evolved from my hypothesis that avoidance of rejected aspects of the self should be at least as motivating as, and potentially more motivating than, the positive self-guides that more commonly appear in the literature (i.e., ideal self, ought self, etc.). Much of this work has involved studying affective and cognitive, conscious and unconscious, reactions to threatening messages about the self. Most recently, I have extended this work into the development of self-regulatory model of aggression.
The second area is prejudice, stereotyping, and prejudice reduction, especially as it concerns individuals’ conflicting attitudes about racial outgroup members. I am currently working on such projects as (a) applying dissonance theory and other persuasion techniques to the problems of racial prejudice and attitudinal ambivalence, (b) exploring the affective versus cognitive bases of racial ambivalence and the differential effects of priming affect and cognition on prejudicial responding, and (c) developing a model of “self-involvement” concerning how reactions to outgroup members (i.e., discriminatory vs. reverse discriminatory responding) vary depending on which aspects of one’s self-concept (i.e., implicit vs. explicit attitudes) are salient.
More recently, I have begun collaborating with Mike Leippe on a program of research on eyewitness behavior. In particular, we have been studying the eyewitnesses’ confidence in their lineup identifications, the factors (especially social ones) that influence, and the conditions under which confidence is and is not diagnostic of identification accuracy. In addition, we have been examining the impact of expert psychological testimony about eyewitness memory on juror decision-making.