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Direct linkBitsika, Vicki; Sharpley, Christopher F. – International Journal of Disability, Development and Education, 2018
The validity, reliability and factor structure of the Autism Spectrum Disorder Behaviour Checklist-Revised (ASDBC-R) were measured in a sample of 140 boys with Autism Spectrum Disorder (ASD) aged between 6 and 18 years. Internal consistency (Cronbach's alpha) was satisfactory and the ASDBC-R significantly correlated with the Social Responsiveness…
Descriptors: Clinical Diagnosis, Intervention, Planning, Test Validity
Markowitz, Leslie A.; Reyes, Charina; Embacher, Rebecca A.; Speer, Leslie L.; Roizen, Nancy; Frazier, Thomas W. – Autism: The International Journal of Research and Practice, 2016
This study investigated the psychometric properties of the Child and Family Quality of Life scale, a measure of psychosocial quality of life in those with autism and related developmental disorders. Parents of 212 children suspected of autism spectrum disorder completed the Child and Family Quality of Life prior to a diagnostic evaluation. Results…
Descriptors: Psychometrics, Quality of Life, Autism, Pervasive Developmental Disorders
Norris, Megan; Lecavalier, Luc; Edwards, Michael C. – Journal of Autism and Developmental Disorders, 2012
The current study tested several competing models of the autism phenotype using data from modules 1 and 3 of the ADOS. Participants included individuals with ASDs aged 3-18 years (N = 1,409) from the AGRE database. Confirmatory factor analyses were performed on total samples and subsamples based on age and level of functioning. Three primary…
Descriptors: Autism, Factor Structure, Symptoms (Individual Disorders), Pervasive Developmental Disorders
Reid, Melissa A. – ProQuest LLC, 2012
The purpose of this study was to examine the internal structure, relationships with other variables, and diagnostic accuracy of scores on the Autism Diagnostic Observation Schedule-Generic (ADOS-G; Lord et al., 1999) for the purpose of diagnostic decision-making. Participants were 462 children enrolled in a public school district in the southern…
Descriptors: Test Validity, Scores, Autism, Clinical Diagnosis
Chowdhury, Monali; Aman, Michael G.; Lecavalier, Luc; Smith, Tristram; Johnson, Cynthia; Swiezy, Naomi; McCracken, James T.; King, Bryan; McDougle, Christopher J.; Bearss, Karen; Deng, Yanhong; Scahill, Lawrence – Autism: The International Journal of Research and Practice, 2016
Previously, we adapted the Home Situations Questionnaire to measure behavioral non-compliance in everyday settings in children with pervasive developmental disorders. In this study, we further revised this instrument for use in autism spectrum disorder and examined its psychometric properties (referred to as the Home Situations…
Descriptors: Factor Structure, Psychometrics, Questionnaires, Pervasive Developmental Disorders
Szatmari, Peter; Georgiades, Stelios; Bryson, Susan; Zwaigenbaum, Lonnie; Roberts, Wendy; Mahoney, William; Goldberg, Jeremy; Tuff, Lawrence – Journal of Child Psychology and Psychiatry, 2006
Background: The Restricted, Repetitive Behaviours and Interests (RRBIs) are represented in the DSM-IV and measured by the Autism Diagnostic Interview-Revised (ADI-R) as one of the three homogeneous symptom categories of Pervasive Developmental Disorders. Although this conceptualisation is well accepted in the field, the grouping of symptoms is…
Descriptors: Evidence, Medical Evaluation, Autism, Interests
