TY - JOUR
T1 - Validation of a revised version of the Physical Self-Inventory - Very Short form for youth with intellectual disabilities (PSI-VS-ID-R) : a Bayesian structural equation modeling approach
AU - Maïano, Christophe
AU - Morin, Alexandre J. S.
AU - Gagnon, Cynthia
AU - Tracey, Danielle
AU - Dubé, Celeste
AU - Craven, Rhonda G.
PY - 2021
Y1 - 2021
N2 - The objective of the current study was to investigate the psychometric properties of scores obtained on a revised version of the Physical Self-Inventory" Very Short form for youth with intellectual disabilities (PSI-VS-ID-R). A sample of 351 youth (M = 15.81 years) with mild to moderate levels of Intellectual Disabilities (ID) from Australia (N = 230) and Canada (N = 121) participated in this study. They respectively completed the English and French versions of the PSI-VS-ID-R, as well as additional measures of self-concept and physical fitness. Bayes structural equation modeling (BSEM) analyses provided support for the validity and reliability of the a priori nine-factor structure of scores obtained on the PSI-VS-ID-R. Moreover, additional BSEM analyses provided support for the comparability of responses obtained on the PSI-VS-ID-R (i.e., lack of differential item functioning or measurement equivalence) irrespective of linguistic versions and of participants' age, body-mass index, ID level, sex and frequency of sport involvement. Additionally, latent mean level differences in PSI-VS-ID-R's factors scores were also found across linguistic versions and as a function of youth's ID level and frequency of sport involvement. Finally, the convergent validity of scores on the PSI-VS-ID-R factors was supported in relation to measures of self-concept and physical fitness.
AB - The objective of the current study was to investigate the psychometric properties of scores obtained on a revised version of the Physical Self-Inventory" Very Short form for youth with intellectual disabilities (PSI-VS-ID-R). A sample of 351 youth (M = 15.81 years) with mild to moderate levels of Intellectual Disabilities (ID) from Australia (N = 230) and Canada (N = 121) participated in this study. They respectively completed the English and French versions of the PSI-VS-ID-R, as well as additional measures of self-concept and physical fitness. Bayes structural equation modeling (BSEM) analyses provided support for the validity and reliability of the a priori nine-factor structure of scores obtained on the PSI-VS-ID-R. Moreover, additional BSEM analyses provided support for the comparability of responses obtained on the PSI-VS-ID-R (i.e., lack of differential item functioning or measurement equivalence) irrespective of linguistic versions and of participants' age, body-mass index, ID level, sex and frequency of sport involvement. Additionally, latent mean level differences in PSI-VS-ID-R's factors scores were also found across linguistic versions and as a function of youth's ID level and frequency of sport involvement. Finally, the convergent validity of scores on the PSI-VS-ID-R factors was supported in relation to measures of self-concept and physical fitness.
UR - https://hdl.handle.net/1959.7/uws:65536
U2 - 10.1016/j.psychsport.2021.102029
DO - 10.1016/j.psychsport.2021.102029
M3 - Article
SN - 1469-0292
VL - 57
JO - Psychology of Sport and Exercise
JF - Psychology of Sport and Exercise
M1 - 102029
ER -
