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Direct linkMargaret A. Azu; Gloria T. Han; Julie M. Wolf; Adam J. Naples; Katarzyna Chawarska; Geraldine Dawson; Raphael A. Bernier; Shafali S. Jeste; James D. Dziura; Sara J. Webb; Catherine A. Sugar; Frederick Shic; James C. McPartland – Autism: The International Journal of Research and Practice, 2025
Clinician and caregiver reports of autism features are both integral to receiving an autism diagnosis and appropriate intervention, yet informant discrepancies are present in clinical practice and may differ by demographic characteristics of the child and family. The present study examined how clinician-caregiver discrepancies in ratings of a…
Descriptors: Autism Spectrum Disorders, Child Behavior, Age, Sex
Annabeth P. Groenman; Carolien Torenvliet; Tulsi A. Radhoe; Joost A. Agelink van Rentergem; Wikke van der Putten; Mareike Altgassen; Hilde M. Geurts – Autism: The International Journal of Research and Practice, 2024
Prospective memory helps us to remember to perform tasks in the future. Prospective memory can be either time or event based. The goal of this study was to determine time- and event-based prospective memory in autistic adults across the life span. Autistic (n = 82) and non-autistic (n = 111) adults, aged between 30 and 86 years, performed the…
Descriptors: Adults, Autism Spectrum Disorders, Memory, Age
Florence Y. N. Leung; Punit Shah; David Mason; Lucy A. Livingston – Autism: The International Journal of Research and Practice, 2024
It was recently reported that learning one is autistic earlier in life is associated with greater quality of life and well-being in university students. In a pre-registered extension of this work, we addressed several limitations of this study by: (1) recruiting a larger sample of more diverse ages and education levels; (2) distinguishing between…
Descriptors: Autism Spectrum Disorders, Adults, Identification, Clinical Diagnosis
Jessica V. Smith; Goldie A. McQuaid; Gregory L. Wallace; Emily Neuhaus; Andrea Lopez; Allison B. Ratto; Allison Jack; Alexis Khuu; Sara J. Webb; Alyssa Verbalis; Kevin A. Pelphrey; Lauren Kenworthy; GENDAAR Consortium – Autism: The International Journal of Research and Practice, 2024
Age at autism diagnosis is associated with sex assigned at birth (hereafter, "sex"), such that girls/women are more likely to be delayed or "missed" entirely in the diagnostic process compared to boys/men. Later diagnosed individuals, especially girls/women, demonstrate increased anxious/depressive symptoms. Data on autistic…
Descriptors: Autism Spectrum Disorders, Clinical Diagnosis, Age, Sex
van 't Hof, Maarten; Tisseur, Chanel; van Berckelear-Onnes, Ina; van Nieuwenhuyzen, Annemyn; Daniels, Amy M.; Deen, Mathijs; Hoek, Hans W.; Ester, Wietske A. – Autism: The International Journal of Research and Practice, 2021
Between 1990 and 2012, the global mean age at diagnosis of autism spectrum disorder ranged from 38 to 120 months. Measures have since been introduced to reduce the age at autism spectrum disorder diagnosis, but the current global mean age is unknown. This review and meta-analysis report the average age at diagnosis from studies published between…
Descriptors: Age, Autism, Pervasive Developmental Disorders, Clinical Diagnosis
Goodwin, Anthony; Matthews, Nicole L.; Smith, Christopher J. – Autism: The International Journal of Research and Practice, 2019
Despite efforts to detect autism spectrum disorder during toddlerhood, many children with autism spectrum disorder remain undiagnosed until school age. To identify characteristics of children whose autism spectrum disorder might not be diagnosed during toddlerhood, this study used archived Autism Diagnostic Interview-Revised records to examine the…
Descriptors: Autism, Pervasive Developmental Disorders, Symptoms (Individual Disorders), Children
Sicherman, Nachum; Loewenstein, George; Tavassoli, Teresa; Buxbaum, Joseph D. – Autism: The International Journal of Research and Practice, 2018
This pilot study estimates the effects of family structure on age of diagnosis, with the goal of identifying factors that may accelerate or delay diagnosis. We conducted an online survey with 477 parents of children with autism. In addition, we carried out novel, follow-up surveys of 196 "friends and family," who were referred by…
Descriptors: Family Structure, Age, Clinical Diagnosis, Autism
Verschuur, Rianne; Huskens, Bibi; Korzilius, Hubert; Bakker, Leonhard; Snijder, Michelle; Didden, Robert – Autism: The International Journal of Research and Practice, 2020
In this study, we investigated the relationship between fidelity of pivotal response treatment implementation and therapist characteristics, such as therapist personality, therapist-child relationship, therapist attitude toward evidence-based practices, and therapist experience. We also explored whether child age and autism symptom severity were…
Descriptors: Autism, Pervasive Developmental Disorders, Allied Health Personnel, Counselor Characteristics
Kalandadze, Tamar; Norbury, Courtenay; Naerland, Terje; Naess, Kari-Anne B. – Autism: The International Journal of Research and Practice, 2018
We present a meta-analysis of studies that compare figurative language comprehension in individuals with autism spectrum disorder and in typically developing controls who were matched based on chronological age or/and language ability. A total of 41 studies and 45 independent effect sizes were included based on predetermined inclusion criteria.…
Descriptors: Figurative Language, Reading Comprehension, Autism, Pervasive Developmental Disorders
Curry, Allison E.; Yerys, Benjamin E.; Huang, Patty; Metzger, Kristi B. – Autism: The International Journal of Research and Practice, 2018
Driving may increase mobility and independence for adolescents with autism without intellectual disability (autism spectrum disorder); however, little is known about rates of licensure. To compare the proportion of adolescents with and without autism spectrum disorder who acquire a learner's permit and driver's license, as well as the rate at…
Descriptors: Longitudinal Studies, Motor Vehicles, Driver Education, Certification
McCormick, Carolyn; Hepburn, Susan; Young, Gregory S.; Rogers, Sally J. – Autism: The International Journal of Research and Practice, 2016
Sensory symptoms are prevalent in autism spectrum disorder but little is known about the early developmental patterns of these symptoms. This study examined the development of sensory symptoms and the relationship between sensory symptoms and adaptive functioning during early childhood. Three groups of children were followed across three time…
Descriptors: Adjustment (to Environment), Longitudinal Studies, Pervasive Developmental Disorders, Developmental Delays
Alvares, Gail A.; Bebbington, Keely; Cleary, Dominique; Evans, Kiah; Glasson, Emma J.; Maybery, Murray T.; Pillar, Sarah; Uljarevic, Mirko; Varcin, Kandice; Wray, John; Whitehouse, Andrew J. O. – Autism: The International Journal of Research and Practice, 2020
'High functioning autism' is a term often used for individuals with autism spectrum disorder without an intellectual disability. Over time, this term has become synonymous with expectations of greater functional skills and better long-term outcomes, despite contradictory clinical observations. This study investigated the relationship between…
Descriptors: Misconceptions, Autism, Pervasive Developmental Disorders, Intelligence
Frenette, Priscilla; Dodds, Linda; MacPherson, Kathleen; Flowerdew, Gordon; Hennen, Brian; Bryson, Susan – Autism: The International Journal of Research and Practice, 2013
While early diagnosis of autism spectrum disorders (ASD) is essential for ensuring timely access to early intervention services, there is limited existing literature investigating factors that delay this diagnosis. This population-based cohort study explored the age at which children in Nova Scotia, Canada, are diagnosed with ASDs and the factors…
Descriptors: Foreign Countries, Autism, Pervasive Developmental Disorders, Age
Weiss, Jonathan A.; Tint, Ami; Paquette-Smith, Melissa; Lunsky, Yona – Autism: The International Journal of Research and Practice, 2016
Many parents of adolescents and adults with autism spectrum disorder experience difficulty accessing appropriate services for their children, and may report low levels of parent self-efficacy. In an effort to identify the factors that contribute to the difficulties these families face, this study examined the role of demographic, systemic, and…
Descriptors: Adolescents, Autism, Self Efficacy, Parent Attitudes
Salomone, Erica; Beranová, Štepánka; Bonnet-Brilhault, Frédérique; Briciet Lauritsen, Marlene; Budisteanu, Magdalena; Buitelaar, Jan; Canal-Bedia, Ricardo; Felhosi, Gabriella; Fletcher-Watson, Sue; Freitag, Christine; Fuentes, Joaquin; Gallagher, Louise; Garcia Primo, Patricia; Gliga, Fotinica; Gomot, Marie; Green, Jonathan; Heimann, Mikael; Jónsdóttir, Sigridur Loa; Kaale, Anett; Kawa, Rafal; Kylliainen, Anneli; Lemcke, Sanne; Markovska-Simoska, Silvana; Marschik, Peter B; McConachie, Helen; Moilanen, Irma; Muratori, Filippo; Narzisi, Antonio; Noterdaeme, Michele; Oliveira, Guiomar; Oosterling, Iris; Pijl, Mirjam; Pop-Jordanova, Nada; Poustka, Luise; Roeyers, Herbert; Rogé, Bernadette; Sinzig, Judith; Vicente, Astrid; Warreyn, Petra; Charman, Tony – Autism: The International Journal of Research and Practice, 2016
Little is known about use of early interventions for autism spectrum disorder in Europe. Parents of children with autism spectrum disorder aged 7?years or younger (N?=?1680) were recruited through parent organisations in 18 European countries and completed an online survey about the interventions their child received. There was considerable…
Descriptors: Foreign Countries, Early Intervention, Young Children, Autism
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