Autistic features in school age children: IQ and gender effects in a population-based cohort

Ryland, H. K., Hysing, M., Posserud, M.-B., Gillberg, C. and Lundervold, A. J. (2014) Autistic features in school age children: IQ and gender effects in a population-based cohort. Research in Autism Spectrum Disorders, 8(3), pp. 266-274. (doi: 10.1016/j.rasd.2013.12.001)

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Abstract

Level and characteristics of intellectual function (IQ) have been associated with symptom presentation in children with autism spectrum disorder. The present study examined associations between IQ and autistic features in a sample of school aged boys and girls selected from a population-based cohort. The study included detailed examinations of 325 children aged 8–12 years, selected from the sample of the Bergen Child Study. IQ was assessed using the third version of the Wechsler Intelligence Scale for Children (WISC-III) and autistic features by parent reports on the Autism Spectrum Screening Questionnaire (ASSQ). Boys obtained higher ASSQ scores than girls. Gender and FSIQ had main effects on ASSQ scores, with the ASSQ scores showing a gradual decline with higher FSIQ for both genders. Discrepancies between verbal and performance IQ were relatively unrelated to ASSQ scores. The findings emphasize the importance of conducting careful assessments of children before reaching conclusions about cognitive function and autistic features.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Gillberg, Professor Christopher
Authors: Ryland, H. K., Hysing, M., Posserud, M.-B., Gillberg, C., and Lundervold, A. J.
College/School:College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > Mental Health and Wellbeing
Journal Name:Research in Autism Spectrum Disorders
Publisher:Elsevier
ISSN:1750-9467
ISSN (Online):1878-0237
Published Online:04 January 2014
Copyright Holders:Copyright © 2013 The Authors
First Published:First published in Research in Autism Spectrum Disorders 8(3):266-274
Publisher Policy:Reproduced under a Creative Commons licence

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