Mesure des processus de changement vis-à-vis de la pratique d'une activité physique régulière (QPC) : adaptation et validation francophone du questionnaire Exercise processes of change

Objective: The purpose of the present study is to validate a French version of Exercise Processes of Change Questionnaire (PCQ) and to examine its psychometric properties and its relation with the other components of Transtheoritical Model (TTM). Methods: Two hundred ninety-three subjects (198 women), 16-65 years old, answered the PCQ and other questionnaires concerning the other components of TTM and concerning exercise intrinsic motivation. Results: Firstly, a confirmatory factor analysis reports good indexes of fit for models distinguishing the 10 processes postulated by the MTT. A significant correlation between both second-order latent variables, distinguishing experiential and behavioural processes (r = 0.879) suggests that the split of ten processes of change into two higher-order classes does not improve the model. Secondly, exercise processes of change were significantly associated with the other components of TTM and four dimensions of exercise intrinsic motivation. © 2011 Elsevier Masson SAS. All rights reserved.