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Direct linkPlumb, 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
Stronach, Sheri; Wetherby, Amy M. – Autism: The International Journal of Research and Practice, 2014
This prospective study of the FIRST WORDS® Project examined restricted and repetitive behaviors in a sample of 55 toddlers at a mean age of 20 months who were later diagnosed with autism spectrum disorder. Restricted and repetitive behaviors were coded using the Repetitive Movement and Restricted Interest Scales in two video-recorded observation…
Descriptors: Behavior Problems, Young Children, Autism, Pervasive Developmental Disorders
