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Zuckerman, Katharine E.; Broder-Fingert, Sarabeth; Sheldrick, R. Christopher – Autism: The International Journal of Research and Practice, 2021
The American Academy of Pediatrics recommends autism spectrum disorder screening at the 18- and 24-month well-child visits. However, despite widespread toddler screening, many children are not diagnosed until school age, and delayed diagnosis is more common among low-income and minority children. Offering autism spectrum disorder screening at…
Descriptors: Autism, Pervasive Developmental Disorders, Clinical Diagnosis, Preschool Children
Raza, Sarah; Zwaigenbaum, Lonnie; Sacrey, Lori-Ann R.; Bryson, Susan; Brian, Jessica; Smith, Isabel M.; Reid, Kyle; Roberts, Wendy; Szatmari, Peter; Vaillancourt, Tracy; Roncadin, Caroline; Garon, Nancy – Journal of Autism and Developmental Disorders, 2019
This study examined the potential of the short form of the Quantitative Checklist for Autism in Toddlers (Q-CHAT-10) to identify autism spectrum disorder (ASD) in a high-risk sibling cohort. High-risk (HR; siblings of children diagnosed with ASD) and low-risk (LR; no family history of ASD) toddlers were assessed prospectively at 18 and 24 months…
Descriptors: Autism, Pervasive Developmental Disorders, Toddlers, At Risk Persons
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
Samadi, Sayyed Ali; McConkey, Roy; Mahmoodizadeh, Ameneh – Autism: The International Journal of Research and Practice, 2021
The assessment instruments for diagnosing children with autism spectrum disorder have been developed mostly in affluent, English-speaking countries. Among the most popular has been the Autism Diagnostic Interview--Revised. This article reports its use in Iran with the dual aims of confirming the factor structure of the revised Autism Diagnostic…
Descriptors: Autism, Pervasive Developmental Disorders, Foreign Countries, Clinical Diagnosis
Roig-Vila, Rosabel; Urrea-Solano, Mayra; Gavilán-Martín, Diego – Education Sciences, 2020
The birth of a child diagnosed with autism spectrum disorder (ASD) tends to strongly disrupt family dynamics and functioning. However, the severity of the impact may be softened if the family feels supported during the diagnostic process. The Valencia region (Spain)--where this study is located--recently put in place a protocol to improve ASD…
Descriptors: Autism, Pervasive Developmental Disorders, Family Needs, Disability Identification
Bejarano-Martín, Álvaro; Canal-Bedia, Ricardo; Magán-Maganto, María; Fernández-Álvarez, Clara; Cilleros-Martín, María Victoria; Sánchez-Gómez, María Cruz; García-Primo, Patricia; Rose-Sweeney, Mary; Boilson, Andrew; Linertová, Renata; Roeyers, Herbert; Van der Paelt, Sara; Schendel, Diana; Warberg, Christine; Cramer, Susanne; Narzisi, Antonio; Muratori, Filippo; Scattoni, María Luisa; Moilanen, Irma; Yliherva, Anneli; Saemundsen, Evald; Loa Jónsdóttir, Sigríður; Efrim-Budisteanu, Magdalena; Arghir, Aurora; Papuc, Sorina Mihaela; Vicente, Astrid; Rasga, Celia; Rogé, Bernadette; Guillon, Quentin; Baduel, Sophie; Kafka, Johanna Xenia; Poustka, Luise; Kothgassner, Oswald D.; Kawa, Rafal; Pisula, Ewa; Sellers, Tracey; Posada de la Paz, Manuel – Journal of Autism and Developmental Disorders, 2020
Early services for ASD need to canvas the opinions of both parents and professionals. These opinions are seldom compared in the same research study. This study aims to ascertain the views of families and professionals on early detection, diagnosis and intervention services for young children with ASD. An online survey compiled and analysed data…
Descriptors: Autism, Pervasive Developmental Disorders, Family Attitudes, Disability Identification
Özerk, Kamil – International Electronic Journal of Elementary Education, 2018
The prevalence of autism/autism spectrum disorder (ASD) has been increasing across the world. Previous studies in Norway reported, that the prevalence rate for 0-10-year-old children is 1 in 166, and in the case of 11-year-old children it is 1 in 125. Moreover, another nationwide study discovered that 1 in 192 males and 1 in 695 females between…
Descriptors: Foreign Countries, Autism, Pervasive Developmental Disorders, Incidence
McDonnell, Christina G.; Bradley, Catherine C.; Kanne, Stephen M.; Lajonchere, Clara; Warren, Zachary; Carpenter, Laura A. – Journal of Autism and Developmental Disorders, 2019
Differential diagnosis of autism spectrum disorder (ASD) is challenging, and uncertainty regarding a child's diagnosis may result in under-identification or prolonged diagnostic pathways. The current study examined diagnostic certainty, or how sure clinicians were that their diagnosis was accurate, among 478 toddler and preschool-aged children…
Descriptors: Clinical Diagnosis, Autism, Pervasive Developmental Disorders, Disability Identification
McConkey, Roy – European Journal of Special Needs Education, 2020
The rise in prevalence rates of children with ASD is well documented internationally. In the United Kingdom, Northern Ireland has consistently higher rates although the reasons for this are not clear. Using data from the annual school census that is held each year in Northern Ireland, changes in the numbers and prevalence rates of pupils…
Descriptors: Incidence, Students with Disabilities, Autism, Pervasive Developmental Disorders
Sturner, Raymond; Howard, Barbara; Bergmann, Paul; Stewart, Lydia; Afarian, Talin E. – Journal of Autism and Developmental Disorders, 2017
This study examined the effect of age at completion of an autism screening test on item failure rates contrasting older (>20 months) with younger (<20 months) toddlers in a community primary care sample of 73,564 children. Items related to social development were categorized into one of three age sets per criteria from Inada et al.…
Descriptors: Autism, Screening Tests, Toddlers, Age Differences
Wong, Patsy P. S.; Wai, Veronica C. M.; Chan, Raymond W. S.; Leung, Cecilia N. W.; Leung, Patrick W. L. – Autism: The International Journal of Research and Practice, 2021
The Hong Kong Chinese version of the Autism-Spectrum Quotient-Child and Autism-Spectrum Quotient-Adolescent were examined for their psychometric properties and specificity on screening autism spectrum disorder against attention-deficit/hyperactivity disorder. This study recruited three groups of participants: typically developing children;…
Descriptors: Autism, Pervasive Developmental Disorders, Psychometrics, Screening Tests
Safer-Lichtenstein, Jonathan; McIntyre, Laura Lee – Focus on Autism and Other Developmental Disabilities, 2020
Rates of children identified as having autism spectrum disorder (ASD) continue to increase in both medical and school settings. While procedures for providing a medical diagnosis are relatively consistent throughout the United States, the process for determining special education eligibility under an ASD classification varies by state, with many…
Descriptors: Autism, Pervasive Developmental Disorders, Severity (of Disability), Children
Blacher, Jan; Stavropoulos, Katherine; Bolourian, Yasamine – Autism: The International Journal of Research and Practice, 2019
In an evaluation of Anglo and Latina mothers and their children at risk of autism, this study compared mother-reported child behavioral concerns to staff-observed symptoms of autism. Within Latina mothers, the impact of primary language (English/Spanish), mothers' education, and child age on ratings of developmental concerns was examined.…
Descriptors: Hispanic Americans, Whites, Mothers, At Risk Persons
Hosozawa, Mariko; Sacker, Amanda; Mandy, William; Midouhas, Emily; Flouri, Eirini; Cable, Noriko – Autism: The International Journal of Research and Practice, 2020
This study aimed to identify determinants of a late autism spectrum disorder diagnosis, including diagnoses made 'very late' (i.e., in adolescence), using the Millennium Cohort Study, a nationally representative population-based cohort in the United Kingdom. Children diagnosed with autism spectrum disorder by age 14 (N = 581) were included and…
Descriptors: Autism, Pervasive Developmental Disorders, Children, Adolescents
Erasmus, Sumari; Kritzinger, Alta; Van der Linde, Jeannie – International Journal of Disability, Development and Education, 2021
Late identification of children with ASD remains a concern. Due to limited research in low and middle-income countries (LMICs) such as South Africa (SA), the early management of autism spectrum disorder (ASD) should be further explored. The aim was to describe the demographic characteristics and early management of ASD that may influence…
Descriptors: Autism, Pervasive Developmental Disorders, Intervention, Foreign Countries