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  • Title: A General Factor of Personality (GFP) in the personality disorders: three studies of the Dimensional Assessment of Personality Pathology - Basic Questionnaire (DAPP-BQ).
    Author: Rushton JP, Irwing P, Booth T.
    Journal: Twin Res Hum Genet; 2010 Aug; 13(4):301-11. PubMed ID: 20707700.
    Abstract:
    We used structural equation modeling to test the hypothesis that a General Factor of Personality (GFP) occupies the apex of the hierarchy of personality disorders in three validation samples of the Dimensional Assessment of Personality Pathology - Basic Questionnaire (DAPP-BQ). In a general population sample (N = 942), we found a GFP explained 34% of the variance in four first-order factors and 33% of the variance in all 18 scales. In a twin sample (N = 1,346), a GFP explained 35% of the variance in four first-order factors and 34% of the variance in all 18 scales. In a clinical sample (N = 656), a GFP explained 34% of the variance in four first-order factors and 30% of the variance in all 18 scales.
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