Petty's research focuses broadly on the situational and individual difference factors responsible for changes in beliefs, attitudes, and behaviors. Much of his current work (and that of the students and colleagues with whom he collaborates) is aimed at examining the implications of the Elaboration Likelihood Model of persuasion for understanding prejudice, consumer choices, political and legal decisions, and health behaviors. Topics of special current interest include: understanding the role of meta-cognitive (e.g., belief confidence) as well as implicit (unconscious) factors in persuasion and resistance to change; the effect of racial and ethnic prejudice, stereotypes, and specific emotions on social judgment and behavior; and investigating how people correct their evaluations for various factors they think may have biased their judgments (such as stereotypes they hold or emotions they are experiencing).
