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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