My research primarily focuses on factors that influence the nature of social information processing. For instance, when perceivers encounter social stimuli, what aspects of their attitudes, beliefs, or the social setting, influence the amount or direction of target-relevant processing? In these situations, assessment of processing is important because the consequences of the resulting perceptions should differ in critical and predictable ways. My research has explored these interests in a variety of social contexts including message-based persuasion, impression formation, and stereotyping.

Primary Interests:

Attitudes and Beliefs
Communication, Language
Judgment and Decision Making
Person Perception
Persuasion, Social Influence
Prejudice and Stereotyping
Social Cognition

Attitudes and Beliefs
Communication, Language
Judgment and Decision Making
Person Perception

Persuasion, Social Influence
Prejudice and Stereotyping
Social Cognition

Research Group or Laboratory:

Attitudes and Social Cognition Laboratory
Interactive Map

Journal Articles:

Clark, J. K., & Wegener, D. T. (2009). Source entitativity and the elaboration of persuasive messages: The roles of perceived efficacy and message discrepancy. Journal of Personality and Social Psychology, 97, 42-57.
Clark, J. K., & Wegener, D. T. (2008). Unpacking outcome dependency: Differentiating effects of dependency and outcome desirability on the processing of goal-relevant information. Journal of Experimental Social Psychology, 44, 586-599.
Clark, J. K., Wegener, D. T., Briñol, P., & Petty, R. E. (2009). Discovering that the shoe fits: The self-validating role of stereotypes. Psychological Science, 20, 846-852.
Clark, J. K., Wegener, D. T., & Fabrigar, L. R. (2008a). Attitude accessibility and message processing: The moderating role of message position. Journal of Experimental Social Psychology, 44, 354-361.
Clark, J. K., Wegener, D. T., & Fabrigar, L. R. (2008b). Attitudinal ambivalence and message-based persuasion: Motivated processing of proattitudinal information and avoidance of counterattitudinal information. Personality and Social Psychology Bulletin, 34, 565-577.
Lassiter, G. D., Clark, J. K., Munhall, P. J., & Lindberg, M. J. (2008). And I thought I was bad! The idiot effect in social judgment. Social Cognition, 26, 347-356.
Wegener, D. T., Clark, J. K., & Petty, R. E. (2006). Not all stereotyping is created equal: Differential consequences of thoughtful versus non-thoughtful stereotyping. Journal of Personality and Social Psychology, 90, 42-59.

Other Publications:

Wegener, D. T., & Clark, J. K. (2009). Beliefs. In D. Sander & K. Scherer (Eds.), Oxford companion to emotion and the affective sciences. London: Oxford University Press.
Wegener, D. T., & Clark, J. K. (2007). Research methods. R. Baumeister & K. D. Vohs (Eds.), Encyclopedia of social psychology. Thousand Oaks, CA: Sage.

Courses Taught:

Attitudes and Attitude Change
Social Psychology and Individual Differences
Statistical Techniques in Psychology

Attitudes and Attitude Change
Social Psychology and Individual Differences

Statistical Techniques in Psychology

Jason K. Clark
Department of Psychology
University of Iowa
Iowa City, IA 52242
United States

Phone: (319) 335-2444
Fax: (319) 335-0191