The present study is a contribution to the Italian validation of the short and very short forms of the Physical Self-Inventory (PSI) for adolescents. The two versions of the Physical Self Inventory have been positively evaluated by the international literature, but they have been used mainly in French speaking samples. A large sample of Italian adolescents have been involved in the study. Results of the confirmatory factor analysis were very similar to those based on French adolescents. Invariance tests confirmed equivalent factorial structures over gender, as well as over sport practice; however, the latent means were significantly higher in males and adolescents practicing sports. Reliability scores of the scales were generally good, with the exception of the physical appearance scale. Summarizing, the short and very short versions of the Physical Self Inventory represent a good alternative to the existing instruments to evaluate physical self-concept in adolescence. Indeed, the PSI is characterized by easy and short administration as well as adequate, but improvable, psychometric properties.
Keywords: Physical Self-Inventory, Italian validation, confirmatory factor analysis, gender invariance, sport invariance, adolescence.
L. Francesca Scalas, Alexandre J.S. Morin, Christophe Maiano, Daniela Fadda, A contribution to the italian validation of the short and very short versions of the physical self inventory (psi) for adolescents in "RICERCHE DI PSICOLOGIA " 3/2013, pp. 385-408, DOI:10.3280/RIP2013-003001