About This Product
BY C. KEITH CONNERS, PHD AND MHS STAFF
The CPT II clarifies the nature of attention deficits, quickly identifying problems with impulsiveness, activation/arousal, or vigilance. This convenient program can be used to screen for or diagnose ADHD, monitor treatment, test the effects of medication, or determine optimal drug dosage.
Sitting at the computer, the examinee presses the space bar or clicks the mouse whenever any letter other than “X” appears on the screen. Letters are displayed for 250 milliseconds, at 1-, 2-, and 4-second intervals. This process yields the following information: Response Times; Changes in Reaction Time Speed and Consistency; Signal Detection Theory Statistics; Confidence Index; Commission Errors; and Omission Errors.
When you want only very strong evidence of ADHD (e.g., to eliminate the need for follow-up evaluation), you can minimize false positives. Similarly, when you want to identify as many potential attention problems as possible, you can opt to minimize false negatives.
Conners’ Kiddie Continuous Performance Test (K-CPT)
Adapted to the needs of young children, this program uses pictures of everyday objects (rather than letters) as on-screen stimuli. In addition, display times and stimulus intervals are longer, though testing procedure, information generated, and options offered are the same as those for the CPT II, described above.