Validation of the Body Appreciation Scale-2 in cisgender, heterosexual and sexual and gender minority adolescents and sexuality-related correlates

Body dissatisfaction has received considerable scientific attention, while research about positive body image has been neglected, particularly among adolescents. The aims of the present study were to examine (1) the factor structure of the Body Appreciation Scale-2 (BAS-2) in a large sample of cisgender, heterosexual and sexual and gender minority adolescents, (2) measurement invariance across language, gender and sexual orientation-based groups, (3) convergent validity with sexuality-related outcomes and (4) one-year temporal stability. Results of a confirmatory analysis among 2419 adolescents (M_age=14.6 years, SD=0.62; 52.6% girls) corroborated the proposed one-dimensional factor structure of the scale. The BAS-2 demonstrated adequate reliability and one-year temporal stability. The scale was partially invariant across gender and fully invariant across language and cisgender heterosexual and sexual and gender minority adolescents. Boys (cis and trans) had higher levels of body appreciation than girls (cis and trans), while no significant differences were observed between heterosexual and sexual minority adolescents. The BAS-2 correlated positively with sexual satisfaction and sexual body-esteem as well as negatively with sexual distress. Our findings support the validity and reliability of the BAS-2 in French and English for measuring body appreciation in adolescents.