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Validation du Big Five Inventory français (BFI-Fr) dans un contexte d'hétéro-évaluation

Abstract : Objective The most significant individual differences concerning personality can be reduced into five broad traits or dimensions generally known as the “Big Five Factors”, which may be characterized as: E for Extraversion, Energy, Enthusiasm; A for Agreeableness, Affection, Altruism; C for Conscientiousness, Constraint, Control; N for Neuroticism, Negative emotionality, Nervousness, and O for Openness, Originality, Open-Mindedness. They can be found in self-assessments, in natural language, in questionnaires, among children, students, adults and in several languages. Moreover, self-assessments and assessments by observers are essential methodological tools for personality psychology. The Big Five Inventory is one of the most used measures of these five factors of personality. It was adapted and validated in France in its self-report form. The objective of this study is to validate the use of the French version of the BFI (BFI-Fr) when subjects are assessed by external informants. Materials and methods Two hundred and fifty-two third-year French students in psychology used the BFI-Fr to describe one or two people they know well. These informants described 405 subjects aged from 18 to 59 years old (199 women). The 45 items of the French version are short statements describing an aspect of personality from adjectives and traits known to be the prototypical markers of the “Big Five”. All items are summed to obtain five average scores. Women generally scored higher than men in dimensions C, A and N. Just as the original American version, the BFI-Fr has a very fast execution time (less than 10 minutes) with a small number of easily understandable items. In order to verify the factor structure of the peer-report BFI-Fr using the same method which was used for the validation of the self-report form, we conducted a principal component analysis with varimax-normalized rotation. Results Analysis yielded the same factor structure which had emerged from the analyses of the self-report BFI-Fr. The internal consistency of all scales was satisfactory, with Cronbach's coefficients ranging from 0.84 to 0.87. The test-retest coefficients ranging from 0.86 to 0.90 showed a good stability through time of all dimensions. All correlations between the components are weak, although several are significant. Overall, regardless of age, women scored higher than men on Extraversion, Agreeableness, and Conscientiousness, and regardless of gender, older subjects scored higher on Conscientiousness than the younger ones. Conclusion The factor-structure and psychometric properties of the peer-report BFI-Fr do not differ from those of the previously validated French self-report form. Limitations of this study include the fact that all informants were students in psychology trained in the observation of behaviour, which could limit generalisation to other, less psychologically-oriented informants. But on the other hand, it may be assumed that they are reliable observers. The BFI-Fr seems to be a relevant peer-report instrument for the assessment of personality according to the “Big Five” model of personality.
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Baptiste Lignier, Jean-Michel Petot, Odile Plaisant, Rafika Zebdi. Validation du Big Five Inventory français (BFI-Fr) dans un contexte d'hétéro-évaluation. Annales Médico-Psychologiques, Revue Psychiatrique, Elsevier Masson, 2016, 174 (6), pp.436--441. ⟨10.1016/j.amp.2015.07.025⟩. ⟨hal-01566657⟩



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