Imitation from 12 to 24 Months in Autism and Typical Development: A Longitudinal Rasch Analysis

Autor/inn/en	Young, Gregory S.; Rogers, Sally J.; Hutman, Ted; Rozga, Agata; Sigman, Marian; Ozonoff, Sally
Titel	Imitation from 12 to 24 Months in Autism and Typical Development: A Longitudinal Rasch Analysis
Quelle	In: Developmental Psychology, 47 (2011) 6, S.1565-1578 (14 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0012-1649
DOI	10.1037/a0025418
Schlagwörter	Socialization; Autism; Imitation; Infants; Interpersonal Relationship; Interaction; Expressive Language; Developmental Delays; Motor Development; Toddlers; Comparative Analysis; Longitudinal Studies; Child Development; At Risk Persons; Pervasive Developmental Disorders; Language Acquisition; Receptive Language; Questionnaires; California; MacArthur Communicative Development Inventory; Mullen Scales of Early Learning; Autism Diagnostic Observation Schedule + Suchen Sie Ihr Suchwort? Socialisation; Sozialisation; Autismus; Infant; Toddler; Toddlers; Kleinkind; Interpersonal relation; Interpersonal relations; Interpersonelle Beziehung; Zwischenmenschliche Beziehung; Interaktion; Entwicklungsverzögerung; Motorische Entwicklung; Infants; Longitudinal study; Longitudinal method; Longitudinal methods; Längsschnittuntersuchung; Kindesentwicklung; Risikogruppe; Sprachaneignung; Spracherwerb; Rezeptive Kommunikationsfähigkeit; Fragebogen; Kalifornien
Abstract	The development of imitation during the second year of life plays an important role in domains of sociocognitive development such as language and social learning. Deficits in imitation ability in persons with autism spectrum disorder (ASD) from toddlerhood into adulthood have also been repeatedly documented, raising the possibility that early disruptions in imitation contribute to the onset of ASD and the deficits in language and social interaction that define the disorder. This study prospectively examined the development of imitation between 12 and 24 months of age in 154 infants at familial risk for ASD and 78 typically developing infants who were all later assessed at 36 months for ASD or other developmental delays. The study established a developmental measure of imitation ability and examined group differences over time, using an analytic Rasch measurement model. Results revealed a unidimensional latent construct of imitation and verified a reliable sequence of imitation skills that was invariant over time for all outcome groups. Results also showed that all groups displayed similar significant linear increases in imitation ability between 12 and 24 months and that these increases were related to individual growth in both expressive language and ratings of social engagement but not in fine motor development. The group of children who developed ASD by age 3 years exhibited delayed imitation development compared with the low-risk typical outcome group across all time-points, but were indistinguishable from other high-risk infants who showed other cognitive delays not related to ASD. (Contains 5 tables, 1 figure and 4 footnotes.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10