Validation of the english and french versions of the multidimensional psychological flexibility inventory short form (MPFI-24)

In this paper, we examined the psychometric properties of the English and French versions of the Multidimensional Psychological Flexibility Inventory short form (MPFI-24). Study 1 was conducted in the United States among the general population (N = 2668) to assess the reliability and factorial validity of the English version. In Study 2, the MPFI-24 was translated in French and tested among a population of French-speaking university students (N = 728) from Canada and France to assess its reliability as well as its factorial and convergent validity. Study 3 was conducted among French-speaking employees (N = 450) from Canada, France, Belgium, Switzerland and Luxembourg to test the concurrent validity of the French version and explore its pattern of correlations with various mental health indicators (burnout, psychological wellbeing, psychological distress and work satisfaction). Confirmatory factor analysis showed that both versions rely on a 2 s-order factors structure encompassing six first-order factors of flexibility and six first-order factors of inflexibility. Both versions have good internal consistency, convergent and concurrent validity. Taken together, these findings suggest that the MPFI-24 is a short, reliable and valid measure of psychological flexibility and inflexibility.

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