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Moss, Jo; Richards, Caroline; Nelson, Lisa; Oliver, Chris – Autism: The International Journal of Research and Practice, 2013
We evaluated the proportion of individuals with Down syndrome (DS: N = 108) who met criteria for autism spectrum disorder (ASD) on the Social Communication Questionnaire and the severity of ASD-related symptomatology in this group. The proportions of individuals with DS meeting the cut-off for ASD and autism in this sample were 19% and 8%,…
Descriptors: Autism, Pervasive Developmental Disorders, Down Syndrome, Incidence
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Moss, Joanna; Oliver, Chris; Arron, Kate; Burbidge, Cheryl; Berg, Katy – Journal of Autism and Developmental Disorders, 2009
We investigated the prevalence and phenomenology of repetitive behavior in genetic syndromes to detail profiles of behavior. The Repetitive Behaviour Questionnaire (RBQ) provides fine-grained identification of repetitive behaviors. The RBQ was employed to examine repetitive behavior in Angelman (N = 104), Cornelia de Lange (N = 101), Cri-du-Chat…
Descriptors: Incidence, Behavior Problems, Mental Retardation, Genetics