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West, Kelsey L.; Roemer, Emily J.; Northrup, Jessie B.; Iverson, Jana M. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: Infants with autism spectrum disorder (ASD) produce fewer play actions and gestures than neurotypical infants (e.g., Mastrogiuseppe et al., 2015; Veness et al., 2012; Zwaigenbaum et al., 2005). The purpose of this study was to investigate whether different "types" of actions and gestures are more or less likely to develop…
Descriptors: Infants, Siblings, Autism, Pervasive Developmental Disorders

Hendrickson, Norejane; Hansen, Sally L. – Child Study Journal, 1977
An interaction analysis observation instrument, with categories found in the definition of "executive competence" by Wenar and related to R. White's effectance motivation, was used to observe 37 toddlers with their mothers. (SB)
Descriptors: Behavior Patterns, Infants, Interaction Process Analysis, Mothers