Chunk #24 — Evidence for the Existence of Positive and Negative Urgency — Urgency in Relation to Comprehensive Models of Personality — Factor analyses relating positive and negative urgency to comprehensive personality structure
We thus conducted a principal components analysis, with varimax rotation, in which we included measures of both positive and negative urgency together with the 30 facets. Eigenvalues (7.67 to 1.77) and the scree plot again suggested five factors. There was a sixth factor (eigenvalue = 1.26), and three variables loaded on it: positive urgency (.85), negative urgency (.63), and the impulsiveness facet from neuroticism (.49). Each of the three scales had secondary loadings on, in this order, neuroticism, conscientiousness, and agreeableness. For three reasons, we did not feel it made sense to argue for a sixth factor. First, it did not emerge on the scree test (its eigenvalue was not appreciably greater than that of the 7th factor, which was 1.08 and which did not have clear meaning) and, using parallel analysis, its eigenvalue was not greater than the average eigenvalue for 100 factor analyses of random data. Second, this sixth factor never emerged from lexical analyses of language or other analyses. Third, it seems likely that one could artificially force the emergence of a sixth factor by including several
