The development of a new 200-item questionnaire based on the theoretical constructs of the alternative Five-factor model of personality is described. We developed the Zuckerman–Kuhlman–Aluja Personality Questionnaire (ZKA–PQ) from an initial pool of 537 items. Its final version includes 5 factors with 4 facets per factor and 10 items per facet. Internal consistencies were adequate particularly for the factors. The 1 factor confirmatory factor analyses showed satisfactory goodness-of-fit indexes, but not for the 5 factor simple structure. When incorporating the secondary loadings and the correlated error terms, the model fit improved. A multigroup analysis showed gender differences for the factors Sensation Seeking, Neuroticism, Aggressiveness, and Activity for the Spanish-speaking sample but only for Aggressiveness in the English-speaking sample. We assessed the convergent and discriminant validity of the ZKA–PQ by inspecting correlations with shortened versions of the Revised NEO Personality Inventory (Costa & McCrae, 1992 Costa, P. T. Jr. and McCrae, R. R. 1992. NEO Personality Inventory (NEO–PI–R), Odessa, FL: Psychological Assessment Resources. [Google Scholar]) and Temperament and Character Inventory–Revised (Cloninger, 1999 Cloninger, C. R. 1999. The Temperament and Character Inventory–Revised, St. Louis, MO: Washington University. Center for Psychobiology of Personality. (Available from C. R. Cloninger, Washington University School of Medicine, Department of Psychiatry, P.O. Box 8134, St. Louis, MO 63110.) [Google Scholar]) in 2 independent and additional samples. This new instrument may be useful for basic and applied research, including normal personality, psychobiology of personality, personality and clinical disorders, and industrial-organizational psychology.
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