Factor structure and measurement invariance of the Body Appreciation Scale - 2 among Brazilian gender-expansive individuals and transgender men

Among gender-expansive individuals and transgender men, body appreciation can play a protective role against minority stressors and is associated with gender euphoria. The Body Appreciation Scale (BAS-2; Tylka & Wood-Barcalow, 2015) is a leading measure of body appreciation that has been mainly validated in cisgender and mixed-gender samples; however, it has not been validated among Brazilian gender-expansive individuals and transgender men. Therefore, we evaluated the psychometric properties of the BAS-2 among adult Brazilian gender-expansive individuals and transgender men. Participants (158 gender-expansive individuals and 138 transgender men) were recruited through social media in Brazil. Confirmatory Factor Analysis (CFA) supported the original 10-item, unidimensional solution. Multigroup CFA showed configural, metric, and scalar invariance of the BAS-2 between gender-expansive individuals and transgender men. Moreover, the BAS-2 demonstrated significant negative associations, ranging from small to large, with self-objectification, drive for muscularity, and appearance-ideal internalization. We also found good internal consistency and test-retest reliability of the measure. Taken together, our results support the psychometric properties of the BAS-2 among Brazilian gender-expansive individuals and transgender men. The present work offers a valuable contribution towards better understanding facets of positive body image across gender-expansive and transgender populations.