Translation and validation of Autism Diagnostic Interview-Revised (ADI-R) for autism diagnosis in Brazil

Abstract

OBJECTIVE: To translate into Brazilian Portuguese the Autism Diagnostic Interview-Revised (ADI-R), an extremely useful diagnostic tool in autism. METHODS: A case-control study was done to validate the ADI-R. After being translated, the interview was applied in a sample of 20 patients with autism and 20 patients with intellectual disability without autism, in order to obtain the initial psychometric properties. RESULTS: The internal consistency was high, with a of Crombach of 0.967. The validity of criterion had sensitivity and specificity of 100%, having as a gold standard the DSM-IV diagnostic criteria. The interview had high discriminant validity, with higher scores in the group of patients with autism, as well as high interobserver consistency, with median kappa of 0.824. CONCLUSION: The final version of ADI-R had satisfactory psychometric characteristics, indicating good preliminary validation properties. The instrument needs to be applied in bigger samples in other areas of the country.

Identificação dos primeiros sintomas do autismo pelos pais

“…Destaca-se, também, o estudo desenvolvido por Castro-Souza e Pasquali (2011), que realizaram a adaptação brasileira do Modified Checklist for Autism in Toddlers, um instrumento de triagem precoce de TEA, composto por 23 itens dicotômicos do tipo sim/não, que foi projetado para ser respondido por pais ou responsáveis de crianças na faixa de idade de 18 a 24 meses. Além disso, foi realizada recentemente a tradução, bem como as análises preliminares de evidências de validade,da ADI-R para o português brasileiro (Becker et al, 2012), o que representa um campo promissor para a replicação do presente estudo em nosso país.…”

Psychometric properties of assessment instruments for autism spectrum disorder: a systematic review of Brazilian studies

“…Regarding the participants' diagnostic evaluation, whether ASD, intellectual disability (ID) or another psychiatric disorder, one study reported that the diagnosis was made by one of the authors 14 , another considered the diagnosis reported by the participant him/herself 15 , and only one study mentioned that the diagnosis was conducted by an interdisciplinary team 16 . The other studies accessed this information from the record of contacted clinics, specialized outpatient clinics and special schools [17][18][19] .…”

“…The other studies accessed this information from the record of contacted clinics, specialized outpatient clinics and special schools [17][18][19] . Only one study mentioned the intelligence quotient (IQ) of the participants with ID 14 and no study reported the IQ of the participants with ASD. …”

“…In general, internal consistency was the method most commonly used in the analyzed studies 14,15,[17][18][19] , primarily using Cronbach's alpha. For the ASQ 18 , the reliability of which was also investigated, the value of Cronbach's alpha for the subscales ranged from 0.63 to 0.84 and it was 0.89 for the overall score 18 .…”

“…The ADI-R was adapted for the Brazilian context by Becker et al 14 , with the permission of the copyright-owning publisher (WPS), and after completion of the training required for its use by one of the authors. The adaptation procedures were based on Sperber's model 23 .…”