Étude confirmative de l'échelle de dépendance à l'activité physique Exercise Dependence Scale-Revised pour une population francophone

The principal component analysis results in a six-factor structure, which accounts for 68.60% of the total variance. Because principal component analysis presents a six-factor structure differing from the original seven-factor structure, two models were tested, using confirmatory factor analysis. The first model is the seven-factor model of the original version of the EDS-R and the second is the model produced by the principal component analysis. The results of confirmatory factor analysis presented the original model (with a seven-factor structure) as a good model and fit indices were good (X2/ddl = 2.89, Root Mean Square Error of Approximation (RMSEA) = 0.061, Expected Cross Validation Index (ECVI) = 1.20, Goodness-of-Fit Index (GFI) = 0.92, Comparative Fit Index (CFI) = 0.94, Standardized Root Mean Square (SRMS) = 0.048). These results showed that the French version of EDS-R has an identical factor structure to the original. Therefore, the French version of EDS-R was an acceptable scale to measure exercise dependence and can be used on a French population.