“…There were no differences between any of the DISC diagnostic groups on the other two objective measures of child behavior. The CPT has demonstrated equivocal utility in extant research in differentiating ADHD from non-ADHD participants (Barkley, 1991;Corkum & Siegel, 1993;Lassiter, D'Amato, Raggio, Whitten, & Bardos, 1994). In general, the CPT has demonstrated only modest discriminative ability for ADHD and normal controls (Halperin et al, 1993;Inoue et al, 1998;Nigg, Hinshaw, & Halperin, 1996) but poor ability to differentiate ADHD from clinical controls (Halperin et al, 1992;Matier-Sharma et al, 1995).…”