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Wulffaert, Josette; Van Berckelaer-Onnes, Ina A.; Scholte, Evert M. – Autism: The International Journal of Research and Practice, 2009
According to the major classification systems it is not possible to diagnose a comorbid autistic disorder in persons with Rett syndrome. However, this is a controversial issue, and given the level of functioning of persons with Rett syndrome, the autistic disorder is expected to be present in a comparable proportion as in people with the same…
Descriptors: Check Lists, Severe Mental Retardation, Autism, Communication Disorders
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Snow, Anne V.; Lecavalier, Luc – Autism: The International Journal of Research and Practice, 2008
This study assessed the psychometric properties of the Modified Checklist for Autism in Toddlers (M-CHAT) and the Social Communication Questionnaire (SCQ) in a sample of preschool children referred for possible pervasive developmental disorders (PDDs). The sample consisted of 82 children between the ages of 18 and 70 months (54 with a PDD…
Descriptors: Check Lists, Autism, Toddlers, Preschool Children