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Peabody Picture Vocabulary Test: Proxy for Verbal IQ in Genetic Studies of Autism Spectrum Disorder / Kate E. KRASILEVA in Journal of Autism and Developmental Disorders, 47-4 (April 2017)

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inJournal of Autism and Developmental Disorders > 47-4 (April 2017) . - p.1073-1085

Titre :	Peabody Picture Vocabulary Test: Proxy for Verbal IQ in Genetic Studies of Autism Spectrum Disorder
Type de document :	Texte imprimé et/ou numérique
Auteurs :	Kate E. KRASILEVA, Auteur ; Stephan J. SANDERS, Auteur ; Vanessa H. BAL, Auteur
Article en page(s) :	p.1073-1085
Langues :	Anglais (eng)
Mots-clés :	Autism spectrum disorder Intelligence tests Cognition Language tests
Index. décimale :	PER Périodiques
Résumé :	This study assessed the utility of a brief assessment (the Peabody Picture Vocabulary Test—4th Edition; PPVT4) as a proxy for verbal IQ (VIQ) in large-scale studies of autism spectrum disorder (ASD). In a sample of 2,420 proband with ASD, PPVT4:IQ correlations were strong. PPVT4 scores were, on average, 5.46 points higher than VIQ; 79% of children had PPVT4 scores within one standard deviation (+/?15) of their VIQ and 90% were similarly classified as having abilities above or below 70 on both measures. Distributions of PPVT4 and VIQ by de novo mutation status were highly similar. These results strongly support the utility of PPVT4 as a proxy for VIQ in large-scale ASD studies, particularly for genetic investigations.
En ligne :	http://dx.doi.org/10.1007/s10803-017-3030-7
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304

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