Cross-validation of the very short form of the Physical Self-Inventory (PSI-VS): Invariance across genders, age groups, ethnicities and weight statuses

- This study tests the robustness of the very short Physical Self Inventory (PSI-VS).
- This study relies on a sample of 1103 French adolescents.
- The results replicated the a priori factor model.
- This model is invariant across gender, weight-categories, age, and ethnicity.
- The results confirm the convergent validity and reliability of the PSI-VS subscales.