Group Representations and Intergroup Bias: Positive Affect, Similarity, and Group Size

Abstract

This study examined how social (group size: two, three, or four persons), appearance (similar or dissimilar dress), and affective (positive or neutral mood) factors can influence social categorization and, consequently, intergroup bias. As expected, positive affect increased the extent to which subjects formed inclusive group representations, anticipating that the members of two groups would feel like one, superordinate group. Also as predicted, subjects in dissimilarly dressed groups expected the memberships to feel less like one group. Consistent with the common in-group identity model, stronger superordinate group representations, in turn, predicted more positive out-group evaluations and lower levels of intergroup bias. The conceptual and applied implications of affect and social representations for improving intergroup relations are considered.