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Neal, Daniene; Matson, Johnny L.; Hattier, Megan A. – Journal of Mental Health Research in Intellectual Disabilities, 2014
The Autism Spectrum Disorder Observation for Children (ASD-OC) is a 45-item observation scale used to assess autistic symptomatology. The reliability of this measure has been established in previous research; therefore, the purpose of this study is to evaluate its validity among a sample of children (1-15 years). The large correlation between the…
Descriptors: Test Validity, Observation, Children, Pervasive Developmental Disorders
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Matson, Johnny L.; LoVullo, Santino V.; Rivet, Tessa T.; Boisjoli, Jessica A. – Research in Autism Spectrum Disorders, 2009
A limited number of studies currently exist focusing on comorbid psychopathology of children with autism spectrum disorders (ASDs). Due to the heterogeneity of ASD symptoms, communication deficits, and impairments in intellectual functioning, assessing symptoms of psychopathology is complicated. The "Autism Spectrum Disorders-Comorbidity for…
Descriptors: Autism, Construct Validity, Test Validity, Factor Structure
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Matson, Johnny L.; Mahan, Sara; Hess, Julie A.; Fodstad, Jill C.; Neal, Daniene – Research in Autism Spectrum Disorders, 2010
Previous studies analyzed the reliability as well as sensitivity and specificity of the Autism Spectrum Disorder-Diagnostic for Children (ASD-DC). This study further examines the psychometric properties of the ASD-DC by assessing whether the ASD-DC has convergent validity against a psychometrically sound observational instrument for Autistic…
Descriptors: Verbal Communication, Nonverbal Communication, Autism, Validity
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Sturmey, Peter; Laud, Rinita B.; Cooper, Christopher L.; Matson, Johnny L.; Fodstad, Jill C. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2010
Previous research has failed to address the possibility of behavioral equivalents in people with ID and mania. The relationship between a measure of mania and possible behavioral equivalents was assessed in 693 adults, most with severe or profound ID, living in a large residential setting. The mania subscale of the DASH-II proved to be a…
Descriptors: Test Validity, Factor Analysis, Mental Disorders, Behavior Problems
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Paclawskyj, Theodosia R.; Matson, Johnny L.; Bamburg, Jerald W.; Baglio, Christopher S. – Research in Developmental Disabilities, 1997
A study of 233 individuals with severe mental retardation examined the validity of the Diagnostic Assessment for the Severely Handicapped-II (DASH-II) through correlation with the Aberrant Behavior Checklist (ABC). DASH-II as a whole was found to have a high degree of convergent validity with the ABC total score. (CR)
Descriptors: Behavior Disorders, Clinical Diagnosis, Correlation, Disability Identification