Primary caregivers completed specific modules from the clinician-assisted National Institute of Mental Health Diagnostic Interview Schedule for Children-IV on the same day as the neuropsychological battery [C-DISC-4.0; (Shaffer, Fisher, Lucas, Dulcan, & Schwab-Stone, 2000)]. The C-DISC-4.0 is a 90-120 minute computerized structured diagnostic interview based on the DSM-IV, administered to caregivers of children between the ages of 8-17 years old (American Psychiatric Association, 2000; Shaffer, et al., 2000). The C-DISC-4.0 assesses the presence of psychiatric diagnoses, including ADHD, as defined by the DSM-IV by evaluating clinical symptoms experienced by their child during the past month, six months, year, and whole life. For the purposes of this research study, diagnoses were derived via computerized algorithms, and the symptoms over the past six months were used to designate a positive ADHD diagnosis.
