The CAT-C is a 42-item assessment instrument with three parallel forms: a Self-Rating Form completed by the child or adolescent, a Parent Rating Form completed by one or both parents, and a Teacher Rating Form completed by the child’s or adolescent’s teacher(s).
Closely resembles the adult version of the CAT. It has item content, clinical scales, and clusters that are similar and parallel between both forms. Standardized on a sample of 800 children and adolescents ages 8-18 years, 800 matched parents of these children, and 500 teachers of these children. Concurrent validity, assessed through comparison with the Conners’ Rating Scales, the ADHD, the CAB™, and the CAD™, revealed moderate-to-high correlations for both non-clinical and combined clinical samples across all three rating forms.