Validation of the Factor Structure and Gender-Related Measurement Invariance of the Inventory of Socially Supportive Behaviors (Short Form): Proposing an Alternative Design

The aim of this paper was to validate the factor structure and gender-related measurement invariance short form Inventory Socially Supportive Behaviors (ISSB). study sample consisted 710 undergraduate students aged 19–55 years. A confirmatory analysis original design confirmed a three-factor with an acceptable goodness fit (CFI = 0.910, TLI 0.894, RMSEA 0.066) validity; however, some indices hinted at potential weak points. Therefore, we proposed alternative model identical but fewer items. This showed better 0.953, 0.936, 0.064) superior (p < 0.001). Convergent discriminant validity reliability were also good. Finally, demonstrated in ISSB for both models, while revealing partial metric scalar invariance. In conclusion, findings suggest that ISSB-SF is reliable, efficient rapid tool measuring received social support, possibly being advantageous if validated on other populations.