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Abstract

Based on evidence presented for the Need for Cognition Scale in its original and abbreviated versions, users of the instrument assume its unidimensionality. In three exploratory studies, maximum-likelihood factor analysis reveals the presence of multiple dimensions in both forms of the scale. Four dimensions—enjoyment of cognitive stimulation, preference for complexity, commitment of cognitive effort, and desire for understanding —emerged with some consistency across samples and were found to be fairly resistant to changes in the polarity of scale items and to explain differentially consumer response to advertisements. © 2006 Wiley Periodicals, Inc.