Cross-cultural adaptation of Autism Classification System of Functioning: Social Communication (ACSF: SC) for use in Brazil

Abstract

Objective: To conduct a cross-cultural adaptation of the instrument: Autism Classification System of functioning: Social communication (ACSF: SC), which allows clinicians to classify the level of the social communication function of children with autism spectrum disorder (ASD), for its use in Brazil. Method: Methodological study of cross-cultural adaptation of the instrument ACSF: SC. We followed recommendations for transcultural adaptation of health protocols, which included assured permission, translation, reverse translation, review, and panel of experts. Results: The evaluation of the experts revealed that the translated version of the ACSF: SC instrument was well understood conceptually and culturally adequate, with 48 sentences presenting a concordance index greater than 90% regarding conceptual and cultural equivalence. Phrases that did not achieve adequate levels of agreement were reviewed, according to experts' suggestions. Conclusion: Equivalence between the original ACSF: SC and its translated into Brazilian Portuguese is guaranteed, as it reached a concordance index above 90%. The Brazilian version of the ACSF: SC will be suitable for clinical use once its psychometrics properties are established.