Reliability and Validity of the Child and Adolescent Functioning Impairment Scale in Children with Attention-Deficit/Hyperactivity Disorder

Seventy-two children with ADHD fulfilling the Diagnostic and Statistical Manual of Mental Disorder, 4th Edition criteria and forty-two normal controls were enrolled in this study. Parents and teachers of the subjects completed the parent and teacher form of the preliminary items of Child and Adolescent Functioning Impairment Scale (CAFIS) made up by the authors. Based on the reliability and factor analysis, the final parent (CAFIS-parent form) and teacher version (CAFIS-teacher form) were constructed. Scales were ana-lyzed for reliability and validity. Relative operating characteristics curve was drawn to calculate the cutoff scores of these scales for chil-dren with ADHD.