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Language and Communication Skills in Preschool Children with Autism Spectrum Disorders: Contribution of Cognition, Severity of Autism Symptoms, and Adaptive Functioning to the Variability
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Kjellmer, Liselotte; Hedvall, Asa; Fernell, Elisabeth; Gillberg, Christopher; Norrelgen, Fritjof – Research in Developmental Disabilities: A Multidisciplinary Journal, 2012
This study examined the contribution of cognitive function, severity of autism, and adaptive functioning to the variability in language and communication skills in 129 preschool children (aged 24-63 months) with autism spectrum disorder (ASD). Participants were selected from a representative research cohort of 208 preschool children on the basis…
Descriptors: Autism, Pervasive Developmental Disorders, Preschool Children, Severity (of Disability)
The Validity of Psychiatric Diagnoses: The Case of "Specific" Developmental Disorders
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Dyck, Murray J.; Piek, Jan P.; Patrick, Jeff – Research in Developmental Disabilities: A Multidisciplinary Journal, 2011
We tested whether developmental coordination disorder (DCD) and mixed receptive expressive language disorder (RELD) are valid diagnoses by assessing whether they are separated from each other, from other childhood disorders, and from normality by natural boundaries termed zones of rarity. Standardized measures of intelligence, language, motor…
Descriptors: Attention Deficit Hyperactivity Disorder, Mental Retardation, Autism, Social Cognition
Atypical Behaviors in Children with Autism and Children with a History of Language Impairment
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Dominick, Kelli C.; Davis, Naomi Ornstein; Lainhart, Janet; Tager-Flusberg, Helen; Folstein, Susan – Research in Developmental Disabilities: A Multidisciplinary Journal, 2007
The frequency, course, and inter-relationships of atypical eating, sleeping, self-injurious behavior, aggression and temper tantrums in children with autism and children with a history of language impairment (HLI), was investigated using a parent interview that was created to examine these problem behaviors. The relationships between these…
Descriptors: Diachronic Linguistics, Sleep, Self Destructive Behavior, Language Aptitude