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Avlund, Sara Højslev; Thomsen, Per Hove; Schendel, Diana; Jørgensen, Meta; Carlsen, Anders Helles; Clausen, Loa – Journal of Autism and Developmental Disorders, 2021
This study aimed to investigate factors associated with a delayed autism spectrum (ASD) diagnosis when compared to children with either no or early ASD diagnosis. Among 893 children assessed for ASD before age 8, 39% had no ASD at baseline, of which 21% received a later ASD diagnosis. Autism symptoms, diagnostic history of other developmental…
Descriptors: Autism, Pervasive Developmental Disorders, Clinical Diagnosis, Disability Identification
Ward, Karen D.; Shukla Mehta, Smita – Focus on Autism and Other Developmental Disabilities, 2019
Social participation of children with an autism spectrum disorder (ASD) in natural environments can be enhanced by teaching them to communicate spontaneously, at least in situations where they have the motivation to access specific items or activities by controlling the amount of access for these stimuli. The purpose of this study was to determine…
Descriptors: Autism, Pervasive Developmental Disorders, Stimuli, Motivation
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Coulter, Kirsty L.; Barton, Marianne L.; Robins, Diana L.; Stone, Wendy L.; Fein, Deborah A. – Autism: The International Journal of Research and Practice, 2021
Although the early behaviors associated with autism spectrum disorder have been well characterized, many behaviors are also commonly observed in young children with other developmental delays and even in those with typical development. Therefore, consideration must be given to whether a child demonstrates sufficient autism spectrum disorder…
Descriptors: Symptoms (Individual Disorders), Autism, Pervasive Developmental Disorders, Toddlers
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Soke, Gnakub Norbert; Rosenberg, Steven A.; Rosenberg, Cordelia Robinson; Vasa, Roma A.; Lee, Li-Ching; DiGuiseppi, Carolyn – Autism: The International Journal of Research and Practice, 2018
We assessed potential factors associated with "current" or "ever" self-injurious behaviors, reported in the Autism Diagnostic Interview-Revised, among children with autism spectrum disorder (n = 692) from the Study to Explore Early Development. Data on factors examined were obtained from questionnaires, standardized clinical…
Descriptors: Self Destructive Behavior, Pervasive Developmental Disorders, Autism, Developmental Disabilities
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Clark, Megan L. E.; Barbaro, Josephine; Dissanayake, Cheryl – Journal of Autism and Developmental Disorders, 2017
This paper charted the cognitive and behavioural profiles from toddlerhood to middle childhood in 48 children diagnosed with ASD at 24 months. The Mullen Scales of Early Learning (MSEL) was administered at 24- and 48-months and the Wechsler Abbreviated Scale of Intelligence (WASI) at school age. Autism severity was derived using The Autism…
Descriptors: Autism, Pervasive Developmental Disorders, Toddlers, Children
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Sacrey, Lori-Ann R.; Bryson, Susan; Zwaigenbaum, Lonnie; Brian, Jessica; Smith, Isabel M.; Roberts, Wendy; Szatmari, Peter; Vaillancourt, Tracy; Roncadin, Caroline; Garon, Nancy – Autism: The International Journal of Research and Practice, 2018
This study examined whether a novel parent-report questionnaire, the Autism Parent Screen for Infants, could differentiate infants subsequently diagnosed with autism spectrum disorder from a high-risk cohort (siblings of children diagnosed with autism spectrum disorder (n = 66)) from high-risk and low-risk comparison infants (no family history of…
Descriptors: Autism, Infants, Pervasive Developmental Disorders, Parents
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Singer, Alison B.; Windham, Gayle C.; Croen, Lisa A.; Daniels, Julie L.; Lee, Brian K.; Qian, Yinge; Schendel, Diana E.; Fallin, M. Daniele; Burstyn, Igor – Journal of Autism and Developmental Disorders, 2016
Maternal immune activity has been linked to children with autism spectrum disorder (ASD). We examined maternal occupational exposure to asthma-causing agents during pregnancy in relation to ASD risk. Our sample included 463 ASD cases and 710 general population controls from the Study to Explore Early Development whose mothers reported at least one…
Descriptors: Autism, Pervasive Developmental Disorders, Mothers, Prenatal Influences