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Matson, Johnny L.; Dempsey, Timothy; LoVullo, Santino V.; Fodstad, Jill C.; Knight, Cheryl; Sevin, Jay A.; Sharp, Brenda – Research in Developmental Disabilities: A Multidisciplinary Journal, 2013
Little research has been conducted on whether deficits in developmental functioning affect the range of core symptoms for autism spectrum disorders (ASD). This study represents a first attempt to determine whether developmental level has an effect on the expression of ASD symptoms in infants and toddlers. Eight hundred and fifty-three infants were…
Descriptors: Autism, Infants, Intellectual Development, Toddlers
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Sipes, Megan; Matson, Johnny L.; Worley, Julie A.; Kozlowski, Alison M. – Research in Autism Spectrum Disorders, 2011
Gender differences in symptoms representing the triad of impairments of Autism Spectrum Disorders remain unclear. To date, the majority of research conducted on this topic has utilized samples of older children. Thus, the purpose of the current study was to utilize a sample of toddlers to investigate gender differences in symptom endorsements of…
Descriptors: Autism, Symptoms (Individual Disorders), Toddlers, Gender Differences
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Matson, Johnny L.; Love, Steven R. – Australia and New Zealand Journal of Developmental Disabilities, 1990
Parents rated the fears of their autistic children (n=14), and results were compared with ratings for nonhandicapped same-sex, same-age (2.5-17 years) peers. More autistic children than nonhandicapped children were rated as having specific common fears. Fears of autistic children were often different suggesting qualitative variations or…
Descriptors: Adolescents, Autism, Child Development, Childhood Attitudes