IVA continous performance test (CPT) is for professionals who wish to compare their subject with a large database in order to establish practice efficacy or a pre-treatment baseline. It measures auditory and visual reaction time and stablity simultaneouly, not separately. Purchase the starter kit with 10 free tests for just $499.00

IVA+Plus (formerly known as the IVA) is a unique combined auditory and visual continuous performance test which provides data in order to to help psychologists and other clinicians better assess the ADHD symptoms of individuals ages 6 through adult. Following the diagnostic criteria outlined in the DSM-IV, IVA+Plus provides data to help psychologists and other clinicians in making their diagnosis and to facilitate their ability to differentiate between the four sub-types of Attention Deficit/Hyperactivity Disorder – ADHD, Predominantly Inattentive Type (formerly called ADD), ADHD Predominantly Hyperactive-Impulsive Type, ADHD Combined Type, and ADHD Not Otherwise Specified.

IVA+Plus: A quick and easy to use ADHD Testing Tool

The IVA+Plus main test task, which lasts approximately thirteen minutes, presents 500 trials of "1"s and "2"s in a pseudo-random pattern requiring the shifting of sets between the visual and auditory modalities. The subject is required to click the mouse only when he sees or hears a "1" and to inhibit clicking when he sees or hears a "2." During some segments of the IVA+Plus test, the "1"s are more common than the "2"s, creating a response set which "pulls" for errors of commission, or impulsivity. During alternate segments of the IVA+Plus test, the "1"s occur rarely; this invites more errors of omission, or inattention.

The results below clearly indicate progress after 12 sessions of Neurofeedback training. The full Scale Attention Quotient baseline was 74 and it increased 31 points to 107; since 15 points is one standard deviation, this client's (trainee in my clinic) attention improved 2 standard deviations. His parents were able to see concrete evidence of thier child's improvement. Practice efficacy was clearly demonstrated.