We plan to explore the validity of the category of ADHD NOS by identifying the risk for ADHD in the children of ADHD NOS adult probands and identifying common correlates of ADHD in these children. We hypothesize the rate of ADHD will be higher in the children of the ADHD NOS probands than the rate of ADHD previously published for siblings of proband children with ADHD; and ADHD children of ADHD NOS adults will have higher rates of school failure (as measured by their rate of repeated grades, need for tutoring, and placement in special classes) than their non-ADHD siblings.~The proposed study includes a one-time fifteen minute survey derived from the ADHD module of the Kiddie Schedule for Affective Disorders - Epidemiological Version (KSADS-E) with the proband of an ADHD NOS study regarding his/her children, in order to assess possible ADHD symptoms of that child. We also ask school questions regarding certain aspects of a child's educational experience.
The researchers plan to explore the validity of the category of ADHD NOS by identifying the risk for ADHD in the children of ADHD NOS adult probands and identifying common correlates of ADHD in these children. The researchers hypothesize that the rate of ADHD will be higher in the children of the ADHD NOS probands than the rate of ADHD previously published for siblings of proband children with ADHD; and ADHD children of ADHD NOS adults will have higher rates of school failure (as measured by their rate of repeated grades, need for tutoring, and placement in special classes) than their non-ADHD siblings.