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Factor Structure of Repetitive Behaviors across Autism Spectrum Disorder and Attention-Deficit/Hyperactivity Disorder
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Brierley, Noah J.; McDonnell, Christina G.; Parks, Kaitlyn M. A.; Schulz, Samantha E.; Dalal, Tyler C.; Kelley, Elizabeth; Anagnostou, Evdokia; Nicolson, Robert; Georgiades, Stelios; Crosbie, Jennifer; Schachar, Russell; Liu, Xudong; Stevenson, Ryan A. – Journal of Autism and Developmental Disorders, 2021
Restricted interests and repetitive behaviors (RRBs) are core symptoms of autism spectrum disorder (ASD), and commonly occur in attention-deficit/hyperactivity disorder (ADHD). Little is known about how RRBs manifest in ADHD. We quantified and compared factor structures of RRBs in children with ASD (n = 634) or ADHD (n = 448), and related factors…
Descriptors: Factor Structure, Behavior Problems, Repetition, Autism
An Exploratory Analysis of Predictors of Youth Suicide-Related Behaviors in Autism Spectrum Disorder: Implications for Prevention Science
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McDonnell, Christina G.; DeLucia, Elizabeth A.; Hayden, Elizabeth P.; Anagnostou, Evdokia; Nicolson, Rob; Kelley, Elizabeth; Georgiades, Stelios; Liu, Xudong; Stevenson, Ryan A. – Journal of Autism and Developmental Disorders, 2020
Although autism spectrum disorder (ASD) is associated with significant mental health concerns, little is known about suicidality, particularly among youth. To address this critical gap in the literature, the current study examined the predictive validity of (1) demographics, (2) core autism symptoms, (3) cognitive abilities and adaptive behavior,…
Descriptors: Suicide, Pervasive Developmental Disorders, Predictive Validity, At Risk Persons
Brief Report: Repetitive Behaviours in Greek Individuals with Autism Spectrum Disorder
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Georgiades, Stelios; Papageorgiou, Vaya; Anagnostou, Evdokia – Journal of Autism and Developmental Disorders, 2010
The main objective of this study was to examine the factor structure of restricted repetitive behaviours (RRBs) in a sample of 205 Greek individuals with Autism Spectrum Disorder (ASD), using the Repetitive Behavior Scale-Revised (RBS-R). Results show that the structure of RRBs in this Greek sample can be described using a 2-factor solution. The…
Descriptors: Autism, Factor Structure, Foreign Countries, Pervasive Developmental Disorders