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Lydon, J., Jamieson, D., & Zanna, M. (1988). Interpersonal similarity and the social and intellectual dimensions of first impressions. Social Cognition, 6, 269-286.



89 undergraduates were asked to form social and intellectual first impressions of a target person who was similar or dissimilar to them in terms of both attitudes and activity preferences. Results indicate that both attitude and activity preference similarity affected judgments of attraction. However, activity similarity was especially predictive of liking judgments, whereas attitude similarity was especially predictive of respect judgments. This differential effect was even more pronounced for the inference of personality traits. Findings suggest that interpersonal similarity and attraction are multidimensional constructs.

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