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Matson, Johnny L.; Gonzalez, Melissa; Wilkins, Jonathan – Research in Autism Spectrum Disorders, 2009
The Autism Spectrum Disorders-Diagnostic for Children (ASD-DC) is a 40-item Likert format scale designed to serve in the diagnosis of children and adolescents from 2 to 16 years of age. The reliability and factor structure of the scale have been established in previous research. Studies 1 and 2 were designed to evaluate the validity of the measure…
Descriptors: Autism, Asperger Syndrome, Validity, Factor Structure