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Direct linkNeal, 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
Horovitz, Max; Matson, Johnny L.; Barker, Alyse – Research in Autism Spectrum Disorders, 2012
Little research has been conducted to date on the relationship between psychotropic medication use and autism spectrum disorders (ASDs). Participants in the current study were placed into one of four groups: ASD on psychotropic medications (N = 33), ASD off psychotropic medications (N = 45), atypically developing on psychotropic medications (N =…
Descriptors: Autism, Toddlers, Infants, Severity (of Disability)
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
Matson, Johnny L.; Wilkins, Jonathan; Macken, Jennifer – Journal of Mental Health Research in Intellectual Disabilities, 2009
Challenging behaviors were assessed in 313 children, and it was demonstrated that children with autism spectrum disorders (ASD) exhibited greater levels of challenging behavior than both normally developing controls and children with psychopathology or atypical development. Next, we examined the relation between challenging behaviors and symptoms…
Descriptors: Autism, Psychopathology, Severity (of Disability), Pervasive Developmental Disorders
Matson, Johnny L.; Terlonge, Cindy; Gonzalez, Melissa L.; Rivet, Tessa – Research in Developmental Disabilities: A Multidisciplinary Journal, 2006
The purpose of this study was to explore the interrelationship of social and adaptive skills in adults with bipolar disorder and severe or profound intellectual disability. A bipolar group (N=14), a severe psychopathology group without bipolar disorder (N=14), and a control group with no DSM-IV Axis I diagnosis (N=14) were compared on the…
Descriptors: Interpersonal Competence, Adjustment (to Environment), Psychopathology, Comparative Analysis
