Instrument to screen cases of pervasive developmental disorder-a preliminary indication of validity Instrumento para rastreamento dos casos de transtorno invasivo do desenvolvimento-estudo preliminar de validacão
Tipo
Artigo
Data de publicação
2009
Periódico
Revista Brasileira de Psiquiatria
Citações (Scopus)
24
Autores
Sato F.P.
Paula C.S.
Lowenthal R.
Nakano E.Y.
Brunoni D.
Schwartzman J.S.
Mercadante M.T.
Paula C.S.
Lowenthal R.
Nakano E.Y.
Brunoni D.
Schwartzman J.S.
Mercadante M.T.
Orientador
Título da Revista
ISSN da Revista
Título de Volume
Membros da banca
Programa
Resumo
Objective: To translate into Portuguese, back-translate, culturally adapt and validate a screening instrument for pervasive developmental disorder, the Autism Screening Questionnaire, for use in Brazil. Method: A sample of 120 patients was selected based on three groups of 40: patients with a clinical diagnosis of pervasive developmental disorder, Down syndrome, or other psychiatric disorders. The selfadministered questionnaire was applied to the patients' legal guardians. Psychometric measures of the final versionof the translated questionnaire were tested. Results: The score of 15 had sensitivity of 92.5% and specificity of 95.5% as a cut-off point for the diagnosis of pervasive developmental disorder. Internal validity for a total of 40 questions was 0.895 for alpha and 0.896 for KR-20, ranging from 0.6 to 0.8 for both coefficients. Test and retest reliability values showed strong agreement for most questions. Conclusions: The final version of this instrument, translated into Portuguese and adapted to the Brazilian culture, had satisfactory measurement properties, suggesting preliminary validation proprieties. It was an easy-to-apply, useful tool for the diagnostic screening of individuals with pervasive developmental disorder.