IVA+Plus: Integrated Visual and Auditory Continuous Performance Test (CPT)

About the IVA+Plus

The IVA+Plus is a combined auditory and visual CPT which is designed to help the clinician make an accurate diagnosis of ADHD/ADD in children, adolescents, and adults. The test provides objective data about a person’s ability to concentrate and to avoid making impulsive errors. Following the diagnostic criteria outlined in the DSM-IV, IVA+Plus provides a wealth of data to help clinicians diagnose and differentiate between the four sub-types of ADHD/ADD.

Test Design

The main test task, which lasts approximately thirteen minutes, presents 500 trials of visual and auditory 1′s and 2′s in a pseudo-random pattern, requiring a set-shift between the visual and auditory modalities. The subject is required to click the mouse only when they see or hear a “1” and to inhibit clicking when they see or hear 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, since the subject must remain vigilant while they wait for a “1″ to occur.

The normative group (N=1700, ages 6-96) is divided by gender and grouped by age as follows: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17-18, 19-21, 22-24, 25-29, 30-34, 35-39, 40-44, 45-54, 55-65, 66-96. It is comprised only of people without known attention, learning, neurological, or psychological problems. Many different ethnic groups from a variety of geographical areas were included in the normative sample.

Why the IVA+Plus is a Critical Component in Helping Clinicians Make an Accurate ADHD Diagnosis

All clinicians in making the diagnosis of ADHD will generally conduct a Diagnostic Clinical Interview including history, collect ADHD rating scales from… (Read Full Article)

Top ten reasons to use the IVA+Plus…

	Is easy to use. It is automatically administered using a PC, and test instructions are presented by the computer both visually and auditorally. IVA+Plus’ natural-sounding voice provides a highly structured, standardized, easy-to-use administration procedure.
	Saves time. IVA+Plus enables psychologists and other clinicians to measure and evaluate both auditory and visual inattention and impulsivity separately and simultaneously in approximately 20 minutes. Computer generated scoring is available immediately for almost instant analysis.
	Helps psychologists and other clinicians better communicate the aspects of ADHD/ADD symptoms to parents, teachers and other healthcare providers. IVA+Plus’ visual graphs give skeptics a clear, concrete picture of measurable data to support clinicians’ diagnostic interpretations.
	Is convenient. Multiple tests can be administered to the same individual and score changes quickly graphed, using the Investigator utility (included), to identify and track treatment and medication effects.
	Provides psychologists and other clinicians with a wealth of objective data. IVA+Plus’ unique integrated format provides a wealth of data, with over 85 scales available when in-depth analysis is considered necessary.
	Improves diagnostic accuracy. In a validity study, IVA+Plus correctly identified clinician diagnosed ADHD children 92.3% of the time and had a low positive rate of 10%.
	Gives psychologists and other clinicians unique insight. IVA+Plus’ Attribute scales provide healthcare professionals with patterns of responding regarding learning styles and can help determine whether the client is a visual or auditory learner.
	Is easy for the clinician to interpret. Using the same type of scoring system as IQ tests, IVA+Plus’ interpretation is familiar to clinicians and easy to learn. The optional IVA+Plus Narrative Report Writer provides a variety of different kinds of reports that can do the work of test interpretation for the clinician. The reports can easily be pasted into a comprehensive psychological or educational evaluation.
	Is economical. You can choose to buy as you go, or if you do a lot of ADHD/ADD assessments, you can invest in unlimited test administrations. Either way, you get visual and auditory tests of attention and response control all in one.
	IVA+Plus is the only commercially available continuous performance test that is EEG validated.

What do people say about the IVA+Plus?

“The addition of the IVA+Plus to my assessment battery has been invaluable! Finally I have a way to document the presence or absence of impulsivity and inattention using a standardized measure that actually looks at the child or adolescent – not parent and teacher ratings. I have found the tests and reports easy to use and to integrate with my other findings.”
- Wendy B. Rice, Psy.D. Tampa, FL