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      Validity of Autism Behavior Checklist (ABC): preliminary study Translated title: Validade do Inventário de Comportamentos Autísticos (ICA): estudo preliminar


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          OBJECTIVE: To examine the concurrent and criterion validity of the Autism Behavior Checklist (ABC). METHODS: Three groups, comprising 38 mothers of children previously diagnosed with autism (DSM IV-TR, 2002), 43 mothers of children with language disorders other than autism, and 52 mothers of children who had no linguistic or behavioral complaints, were interviewed. In order to minimize the effect of maternal level of education, the questionnaire was completed by the researcher. To determine the concurrent validation, ANOVA and discriminant analysis were used. The ROC curve was used to establish the cutoff score of the sample and to examine the criterion validity. RESULTS: The mean total score was significantly higher in the group of mothers of autistic children than in the other groups. The ABC correctly identified 81.6% of the autistic children. The ROC curve cutoff score was 49, and the sensitivity was 92.1%, higher than the 57.89% found when a cutoff score of 68 was used. The specificity was 92.6%, similar to the 94.73% obtained with a cutoff score of 68. CONCLUSIONS: The ABC shows promise as an instrument for identifying children with autistic disorders, both in clinical and educational contexts, especially when a cutoff score of 49 is used.

          Translated abstract

          OBJETIVO: Examinar a Validade Concorrente e a Validade de Critério do Inventário de Comportamentos Autísticos (ICA). MÉTODOS: Foram entrevistadas, com a escala, mães de crianças com diagnóstico de transtorno autista, previamente estabelecido por especialistas na área. Para comparação, foram também entrevistadas mães de crianças com transtorno de linguagem e mães de escolares sem queixas de problemas de linguagem e comportamento social. Os três grupos foram assim constituídos: GTA: 38 mães de crianças com transtorno autista (DSM IV-TR, 2002), GTL: 43 mães de crianças com transtorno de linguagem (DSM IV-TR, 2002) e GET: 52 mães de crianças escolares típicas. O questionário foi preenchido sob forma de entrevista para minimizar os efeitos da escolaridade materna. ANOVA e análise discriminante foram usadas para examinar a Validade Concorrente. A curva ROC foi usada para estabelecer o ponto de corte da amostra e para examinar a Validade de Critério. RESULTADOS: O Inventário de Comportamentos Autísticos identificou corretamente 81,6% das crianças com autismo, sendo o escore médio total do GTA significantemente (p < 0,001) maior que os outros dois grupos de crianças. O Inventário de Comportamentos Autísticos mostrou baixa sensibilidade (57,89%) e alta especificidade (94,73%) quando se usou a nota de corte 68 pontos; diminuída a nota de corte para 49 pontos obtida pela curva ROC, a sensibilidade da escala aumentou (92,1%) e a especificidade se manteve alta (92,6%). CONCLUSÕES: O Inventário de Comportamentos Autísticos é um instrumento promissor para identificar crianças com autismo, especialmente com ponto de corte 49, tanto na clínica como em contextos educacionais.

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          Most cited references21

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          Diagnostic and Statistical Manual of Mental Disorders, DSM

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            Strategies for conducting research on language in autism.

            Several different methodological approaches that have been used in studying language in children with autism are outlined. In classic studies, children with autism are compared to comparison groups typically matched on age, IQ, or mental age in order to identify which aspects of language are uniquely impaired in autism. Several methodological problems are noted with this approach including (a) heterogeneity of the autism population, (b) mental retardation, (c) developmental change with age, and (d) sample size and ascertainment. An alternative strategy is suggested which focuses on identifying the complex expression of the language phenotype in autism across the full range of the syndrome. This approach explores within-group individual differences in language functioning, and recently identified distinct language phenotypic subgroups within the autism population that are relevant to understanding the underlying genetic and neurobiological etiology of autism.
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              Criterion-Related and construct validity of the pervasive developmental disorders rating scale and the autism behavior checklist


                Author and article information

                Role: ND
                Role: ND
                Revista Brasileira de Psiquiatria
                Rev. Bras. Psiquiatr.
                Associação Brasileira de Psiquiatria - ABP (São Paulo )
                December 2005
                : 27
                : 4
                : 295-301
                [1 ] Universidade Federal de São Paulo Brazil



                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1516-4446&lng=en

                Clinical Psychology & Psychiatry
                Autistic disorder,Diagnostic and statistical manual of mental disorders,Diagnosis, differential,Validation studies,Questionnaires,Transtorno autístico,Manual diagnóstico e estatístico de transtornos mentais,Diagnóstico diferencial,Validade,Questionários


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