Services on Demand
Jornal de Pediatria
Print version ISSN 0021-7557On-line version ISSN 1678-4782
PEREIRA, Alessandra; RIESGO, Rudimar S. and WAGNER, Mario B.. Childhood autism: translation and validation of the Childhood Autism Rating Scale for use in Brazil. J. Pediatr. (Rio J.) [online]. 2008, vol.84, n.6, pp.487-494. ISSN 0021-7557. http://dx.doi.org/10.1590/S0021-75572008000700004.
OBJECTIVE: To translate the Childhood Autism Rating Scale into Brazilian Portuguese and to determine the initial psychometric properties of the resulting version (CARS-BR). METHODS: The methodology used to produce an adequate version included translation, backtranslation and evaluation of semantic equivalence. In order to determine its psychometric properties (internal consistency, validity and reliability), the CARS-BR was administered to 60 consecutive patients with autism, aged between 3 and 17 years and seen at a university hospital. RESULTS: Internal consistency was high, with a Cronbach's alpha of 0.82. Convergent validity, in comparison with the Autistic Traits Assessment Scale, exhibited a Pearson's correlation coefficient of r = 0.89. When correlated with the Global Assessment of Functioning Scale in order to evaluate discriminant validity, the CARS-BR exhibited a Pearson's coefficient of r = -0.75. Test-retest reliability exhibited a kappa coefficient of 0.90. CONCLUSION: These results suggest that the CARS-BR is a valid and reliable instrument for evaluating autism severity in Brazil.
Keywords : Autism; validation studies; questionnaires.