INFAD (Jul 2015)

Pychometric properties of portuguese version of big five inventory (bfi)

  • Sonia Brito Costa,
  • Pedro Bem-Haja,
  • Ana Moisao,
  • Afonso Alberty,
  • Florencio Vicente Castro,
  • Hugo de Almeida

DOI
https://doi.org/10.17060/ijodaep.2015.n2.v1.325
Journal volume & issue
Vol. 1, no. 2
pp. 83 – 94

Abstract

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The two studies of the present investigation had as "Conceptual framework" the model of the 5 factors of Costa and McCrae (1987). In a first study, the Big Five Inventory (BFI) of John, Donahue, Kentle (1991), modified by Jonh Srivastava (1999), was translated and adapted for the Portuguese population, evaluating internal consistency and temporal stability. In a second study, the objective was to evaluate the factorial structure (factorial validity) and the criterion validity by the concurrent comparison with a parallel instrument already validated for Portugal, the Ten Item Personality Inventory (TIPI), adapted and validated by Lima and Castro ). In this second study it was also intended to verify again the internal consistency behavior. After the first study, the BFI was renamed the Inventory of the Five Great Personality Factors (IGFP5). The sample of the first study consisted of 150 soccer players and the second study by 369 participants from the same professional group. In the first study, good internal consistency values were obtained, confirming the temporal stability of the measurement by obtaining significant correlations between the test and the retest and the approximation of the absolute values of alpha in the two moments. In relation to study 2, a solution with 16 factors was initially extracted; however, after an analysis of the eigenvalues screenplot, the fixed solution was penta-factorial and very close, in the extraction of items, to the original validation and validations of other countries. Criterion validity was achieved by the existence of significant correlations in the expected direction between the two questionnaires applied. The overall internal consistency maintained, in this second study, values within the recommended, except for the "kindness" factor which, although close to acceptable, has to be analyzed carefully. The results showed that the Portuguese version of BFI, now called IGFP5, has good psychometric characteristics, although the subscale / kindness factor has to be used with care.

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