Exploratory and confirmatory factor analyses of the pervasive developmental disorders rating scale for young children with autistic disorder

The Journal of Genetic Psychology
Ronald C Eaves, Thomas O Williams

Abstract

In this study, the authors examined the construct validity of the Pervasive Developmental Disorder Rating Scale (PDDRS; R. C. Eaves, 1993), which is a screening instrument used to identify individuals with autistic disorder and other pervasive developmental disorders. The PDDRS is purported to measure 3 factors--arousal, affect, and cognition-that collectively make up the construct of autism. Using scores from 199 children (aged 1-6 years) diagnosed with autistic disorder, the authors submitted data to exploratory and confirmatory factor analyses. In the 1st series of analyses, the authors analyzed a user-specified 3-factor solution using principal axis factor analysis with a promax rotation to evaluate the assertion of a correlated 3-factor structure. Next, the authors analyzed 1-factor and 2-factor solutions to determine if they provided a better factor structure for the data. In the 2nd series, the authors conducted confirmatory factor analyses, which compared the theorized hierarchical 2nd-order factor model with 5 plausible competing models. The results of the exploratory analyses supported the 3-factor solution. With the confirmatory analyses, the 2nd-order factor model provided the best fit for the data. The exploratory ...Continue Reading

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Citations

Jun 5, 2013·Journal of Autism and Developmental Disorders·Jill ShusterMaggie E Toplak
Jun 28, 2011·Journal of the American Academy of Child and Adolescent Psychiatry·Xiao-Qing LiuPeter Szatmari
Jun 13, 2015·Health Technology Assessment : HTA·Helen McConachieKatrina Williams
Dec 1, 2017·Journal of Autism and Developmental Disorders·Maria José CortésRafael Martínez-Leal
Apr 1, 2016·Scandinavian Journal of Pain·Jordi MiróMark P Jensen
Nov 28, 2018·International Journal of Paediatric Dentistry·Yan WangHonghu Liu
Aug 16, 2017·Journal of Health Psychology·Ester SoléJordi Miró
Jan 7, 2014·Journal of Occupational Rehabilitation·Jose M RamadaGeorge L Delclos
May 16, 2014·The Journal of Asthma : Official Journal of the Association for the Care of Asthma·Eirini P GrammatopoulouPanagiotis Kalagiakos
Aug 4, 2018·The Cochrane Database of Systematic Reviews·Melinda RandallKatrina Williams

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