The purpose of the present study was to evaluate the psychometric properties of the Melbourne Decision Making Questionnaire (MDMQ) in a French population. This questionnaire is based on the decisional conflict model proposed by Janis and Mann (1977). Four major decisional styles were identified by authors: vigilance, buck-passing, procrastination, and hypervigilance. Four hundred fifty-four participants took part in the study. Results of factor analysis and confirmatory factor analysis indicated that the MDMQ can be conceptualized on a four-factor model according to Mann et al. (1998). The reliability of the MDQM appeared to be satisfactory with good internal consistency. Even if mean scores obtained on each decisional style are lower than preceding studies, results of this study justify utilisation of MDQM with the French population. (PsycINFO Database Record (c) 2016 APA, all rights reserved)
