Validity evidence of the Adolescent Resilience Scale for use in Brazil

To demonstrate the cross-cultural adaptation process and preliminary validity evidence of the Adolescent Resilience Scale for adolescent students in situations of social vulnerability for use in Brazil.

Methodological study with psychometric characteristics. The adaptation of the 21-item scale followed five stages: translation, synthesis of translations, back-translation, evaluation by a committee of experts, and pre-testing. Data collection was conducted from April to October 2023. The stage with 20 experts was conducted virtually, while the pre-test, with 40 adolescents, took place at a school in Recife, Pernambuco. Descriptive statistical analyses were performed, and Cronbach's alpha and McDonald's omega were calculated to assess reliability.

The translated and adapted version of the Adolescent Resilience Scale was modified according to the experts' suggestions, maintaining its 21 items. The overall Content Validity Index (CVI) was 0.98, Cronbach's Alpha was 0.782, and McDonald's Omega was 0.794, all values considered satisfactory. The experts' suggestions coincided with those of the adolescents regarding semantic equivalence, resulting in expressions more appropriate to their daily lives and the Brazilian context.

The scale was adapted to the Brazilian context; however, further studies should evaluate the instrument's psychometric properties.