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Alexandra Sturm; Sijia Huang; Vanessa Bal; Ben Schwartzman – Autism: The International Journal of Research and Practice, 2024
Several validated adult autism symptom screening tools exist; however, there are concerns about the validity of instruments in adults who self-identify and those who have an autism diagnosis. This study evaluated the psychometric properties of the RAADS-R and RAADS-14 across gender, autism diagnosis and autistic identity, and age among a sample of…
Descriptors: Psychometrics, Autism Spectrum Disorders, Adults, Screening Tests
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Chloe Turcan; Henry Delamain; Asher Loke; Richard Pender; Will Mandy; Rob Saunders – Autism: The International Journal of Research and Practice, 2024
Mental health conditions are more prevalent in autistic people than non-autistic people. The Strengths and Difficulties Questionnaire is a commonly used screening tool for emotional and behavioural difficulties in autistic children and adolescents. However, few studies have assessed the psychometric properties of the Strengths and Difficulties…
Descriptors: Mental Health, Autism Spectrum Disorders, Adolescents, Preadolescents
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Marta Godoy-Giménez; Ángel García-Pérez; Fernando Cañadas; Angeles F. Estévez; Pablo Sayans-Jiménez – Autism: The International Journal of Research and Practice, 2024
The broad autism phenotype is the phenotypic expression of the primary characteristics of autism. However, currently available tests do not agree with the two-domain operationalization of broad autism phenotype or autism, and their internal structure has shown instability across applications. This study presents the Broad Autism…
Descriptors: Autism Spectrum Disorders, Genetics, Diagnostic Tests, Foreign Countries
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Ellen Wilkinson; Cristan Farmer; Evan Kleiman; Vanessa H. Bal – Autism: The International Journal of Research and Practice, 2024
The commonly used Vineland Adaptive Behavior Scales (VABS-3) divides adaptive behavior into three domains comprising three subdomains. The validity of this three-factor structure has not been explored in autistic samples, which are often heterogeneous with respect to language and IQ. Furthermore, although there are two comparable forms,…
Descriptors: Autism Spectrum Disorders, Factor Structure, Severity (of Disability), Models
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Borissov, Anton; Bakolis, Ioannis; Tekola, Bethlehem; Kinfe, Mersha; Ceccarelli, Caterina; Girma, Fikirte; Abdurahman, Rehana; Zerihun, Tigist; Hanlon, Charlotte; Hoekstra, Rosa A. – Autism: The International Journal of Research and Practice, 2022
Although most children with autism and other neurodevelopmental disorders live in low- and middle-income countries, assessment tools are lacking in these settings. This study aims to culturally adapt and validate two questionnaires for use in Ethiopia: the Autism Treatment Evaluation Checklist and the Pediatric Quality of Life Inventory™ Family…
Descriptors: Test Construction, Test Validity, Autism Spectrum Disorders, Quality of Life
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Zhong Jian Chee; Anke M. Scheeren; Marieke de Vries – Autism: The International Journal of Research and Practice, 2024
Despite several psychometric advantages over the 50-item Autism Spectrum Quotient, an instrument used to measure autistic traits, the abridged AQ-28 and its cross-cultural validity have not been examined as extensively. Therefore, this study aimed to examine the factor structure and measurement invariance of the AQ-28 in 818 Dutch (M[subscript…
Descriptors: Autism Spectrum Disorders, Questionnaires, Factor Structure, Factor Analysis