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Plumb, Allison M.; Wetherby, Amy M. – Journal of Speech, Language, and Hearing Research, 2013
Purpose: In this study, the authors aimed to examine the vocalizations of children with autism spectrum disorder (ASD) in the second year of life and their relationship to other areas of development. Method: Vocalizations were examined in 125 children between ages 18 and 24 months: 50 later diagnosed with ASD, 25 with developmental delays (DD) in…
Descriptors: Pervasive Developmental Disorders, Autism, Toddlers, Language Acquisition
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Weitzner-Lin, Barbara – Infant-Toddler Intervention: The Transdisciplinary Journal, 1997
This study analyzed the quality and quantity of intentional communication in four toddlers with Down Syndrome (DS) and eight subjects matched for either chronological or developmental age. Analysis of Communication and Symbolic Behavior Scale scores indicated that DS subjects expressed different communicative functions and used different…
Descriptors: Communication Skills, Downs Syndrome, Language Acquisition, Manual Communication