In this paper, we argue that citizens' views about the personality characteristics of their political leaders are subject to systematic bias, motivated by the desire to maintain existing impressions. We report two studies designed to explore how such trait biases, involving judgments of real politicians, are manifested. Drawing on work in social psychology (John, Hampson, and Goldberg, 1991), we hypothesize, and demonstrate experimentally, that traitbreadth plays a critical role in the judgment process. Specifically, people tend to select broad positive traits (e.g., “kind”) and narrower negative traits (“gullible”) to describe politicians that they like; conversely, people tend to select broad negative traits (“unintelligent”) and narrower positive traits (“soft-hearted”) to describe politicians that they dislike. This trait breadth attribution bias was much stronger among those who had a positive, rather than negative, impression of the politician, a result we discuss in the context of related evidence of affective asymmetries in political judgment (e.g., Kinder, 1986; Marcus and Mackuen, 1993). More generally, these studies illustrate the potential associated with integrating cognitive, affective, and motivational factors in the service of fully understanding political judgment and choice.
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