BACKGROUND: Processes of change (POC) are constructs from the transtheoretical model that propose to examine how people engage in a behavior. However, there is no consensus about a leading model explaining POC and there is no validated French POC scale in physical activity PURPOSE: This study aimed to compare the different existing models to validate a French POC scale. METHOD: Three studies, with 748 subjects included, were carried out to translate the items and evaluate their clarity (study 1, n = 77), to assess the factorial validity (n = 200) and invariance/equivalence (study 2, n = 471), and to analyze the concurrent validity by stage × process analyses (study 3, n = 671). RESULTS: Two models displayed adequate fit to the data; however, based on the Akaike information criterion, the fully correlated five-factor model appeared as the most appropriate to measure POC in physical activity. The invariance/equivalence was also confirmed across genders and student status. Four of the five existing factors discriminated pre-action and post-action stages. CONCLUSION: These data support the validation of the POC questionnaire in physical activity among a French sample. More research is needed to explore the longitudinal properties of this scale.
BACKGROUND: Processes of change (POC) are constructs from the transtheoretical model that propose to examine how people engage in a behavior. However, there is no consensus about a leading model explaining POC and there is no validated French POC scale in physical activity PURPOSE: This study aimed to compare the different existing models to validate a French POC scale. METHOD: Three studies, with 748 subjects included, were carried out to translate the items and evaluate their clarity (study 1, n = 77), to assess the factorial validity (n = 200) and invariance/equivalence (study 2, n = 471), and to analyze the concurrent validity by stage × process analyses (study 3, n = 671). RESULTS: Two models displayed adequate fit to the data; however, based on the Akaike information criterion, the fully correlated five-factor model appeared as the most appropriate to measure POC in physical activity. The invariance/equivalence was also confirmed across genders and student status. Four of the five existing factors discriminated pre-action and post-action stages. CONCLUSION: These data support the validation of the POC questionnaire in physical activity among a French sample. More research is needed to explore the longitudinal properties of this scale.
Authors: C Nigg; L Hellsten; G Norman; L Braun; R Breger; P Burbank; M Coday; D Elliot; C Garber; M Greaney; S Keteyian; F Lees; C Matthews; E Moe; B Resnick; D Riebe; J Rossi; D Toobert; T Wang; G Welk; G Williams Journal: Ann Behav Med Date: 2005-04
Authors: Raheem J Paxton; Claudio R Nigg; Robert W Motl; Kelly McGee; Dana McCurdy; Caroline Horwath Matthai; Rod K Dishman Journal: Ann Behav Med Date: 2008-07-08
Authors: Kien Ting Liu; Yee Cheng Kueh; Wan Nor Arifin; Mohd Ismail Ibrahim; Mohd Nazri Shafei; Garry Kuan Journal: Int J Environ Res Public Health Date: 2020-04-16 Impact factor: 3.390