Biased assimilation, attitude polarization, and affect in reactions to stereotype-relevant scientific information

Two studies examined (a) whether biased assimilation and attitude polarization occur in the processing of stereotype-relevant scientific information and (b) the role of affect in these processes. In Study I, individuals high or low in prejudice toward homosexuals read two fictitious studies, one confirming and one disconfirming the stereotype of homosexuality. Study 2 replicated Study I using a sample including individuals with moderate attitudes about homosexuality. Evidence of biased assimilation was found. Participants perceived research consistent with their attitude about homosexuality as more convincing than research inconsistent with their attitude. Evidence of attitude polarization was also found but was restricted to measures of perceived attitude change. Finally, participants reported more negative affective reactions after attitude-inconsistent than attitude-consistent information, and evidence was found that these affective reactions mediated biased processing. Implications of the results for biased assimilation, attitude polarization, and the resiliency of prejudicial attitudes are discussed.