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Yerys, Benjamin E.; Nissley-Tsiopinis, Jenelle; de Marchena, Ashley; Watkins, Marley W.; Antezana, Ligia; Power, Thomas J.; Schultz, Robert T. – Journal of Autism and Developmental Disorders, 2017
Scientists and clinicians regularly use clinical screening tools for attention deficit/hyperactivity disorder (ADHD) to assess comorbidity without empirical evidence that these measures are valid in youth with autism spectrum disorder (ASD). We examined the prevalence of youth meeting ADHD criteria on the ADHD rating scale fourth edition…
Descriptors: Rating Scales, Attention Deficit Hyperactivity Disorder, Behavior Problems, Incidence
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Nelson, Andrew T.; Lopata, Christopher; Volker, Martin A.; Thomeer, Marcus L.; Toomey, Jennifer A.; Dua, Elissa – Journal of Autism and Developmental Disorders, 2016
This study examined the factor structure and internal consistency of special education teaching staff ratings on the Social Responsiveness Scale-2 (SRS-2; Constantino and Gruber 2012), as well as the percentage of ratings falling above pre-established cut scores, for a sample of lower-functioning youth with autism spectrum disorder (ASD; n = 264).…
Descriptors: Factor Analysis, Factor Structure, Measures (Individuals), Teacher Attitudes
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Mirenda, Pat; Smith, Isabel M.; Vaillancourt, Tracy; Georgiades, Stelios; Duku, Eric; Szatmari, Peter; Bryson, Susan; Fombonne, Eric; Roberts, Wendy; Volden, Joanne; Waddell, Charlotte; Zwaigenbaum, Lonnie – Journal of Autism and Developmental Disorders, 2010
This study examined the factor structure of the Repetitive Behavior Scale-Revised (RBS-R) in a sample of 287 preschool-aged children with autism spectrum disorder (ASD). A confirmatory factor analysis was used to examine six competing structural models. Spearman's rank order correlations were calculated to examine the associations between factor…
Descriptors: Check Lists, Autism, Factor Structure, Young Children
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Mooney, Erin L.; Gray, Kylie M.; Tonge, Bruce J.; Sweeney, Deborah J.; Taffe, John R. – Journal of Autism and Developmental Disorders, 2009
The aim of the current study was to investigate the manifestation of repetitive behaviour profiles in young children with a Pervasive Developmental Disorder. The sample consisted of 137 developmentally delayed children with a DSM-IV-TR Pervasive Developmental Disorder (PDD) and 61 developmentally delayed children without a PDD. An exploratory…
Descriptors: Pervasive Developmental Disorders, Factor Structure, Young Children, Developmental Delays
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Oosterling, Iris; Roos, Sascha; de Bildt, Annelies; Rommelse, Nanda; de Jonge, Maretha; Visser, Janne; Lappenschaar, Martijn; Swinkels, Sophie; van der Gaag, Rutger Jan; Buitelaar, Jan – Journal of Autism and Developmental Disorders, 2010
Recently, Gotham et al. ("2007") proposed revised algorithms for the Autism Diagnostic Observation Schedule (ADOS) with improved diagnostic validity. The aim of the current study was to replicate predictive validity, factor structure, and correlations with age and verbal and nonverbal IQ of the ADOS revised algorithms for Modules 1 and 2…
Descriptors: Autism, Predictive Validity, Factor Structure, Test Validity
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Dworzynski, Katharina; Happe, Francesca; Bolton, Patrick; Ronald, Angelica – Journal of Autism and Developmental Disorders, 2009
Factor structure and relationship between core features of autism (social impairments, communication difficulties, and restricted, repetitive behaviours or interests (RRBIs)) were explored in 189 children from the Twins Early Development Study, diagnosed with autistic spectrum disorders (ASDs) using the Development and Wellbeing Assessment (DAWBA;…
Descriptors: Twins, Autism, Factor Structure, Factor Analysis