IVA+Plus – Visual & Auditory Attention Testing

This Site is a must! Auditory and visual continuous performance test is needed especially in the early developmental stages of your child. See below information which has been extracted from the link provided. http://www.braintrain.com/professionals/adhdtesting/ivaplus_pro.htm

VA+Plus^™

IVA+Plus – Visual & Auditory Attention Testing

The state-of-the-art in computerized psychological testing of attentional functioning

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 (formerly IVA) 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 (formerly IVA) 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 (formerly IVA) 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 (formerly IVA) test, the "1"s occur rarely; this invites more errors of omission, or inattention, since the subject must remain vigilant while he waits for a "1" to occur.

VA+Plus: A well-normed ADHD Testing Tool

IVA+Plus' (formerly IVA) normative group (N=1700) 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. The database was primarily collected in Richmond, Texas, Michigan, California and Florida. All individuals were excluded who were in therapy, had a history of LD, hyperactivity or attention problems, who were on any type of medication (other than birth control unless >55 years of age), who had a history of neurological problems (dementia, stroke or TBI) and those who could not validly complete the test. A relatively equal number of males and females were included in each age/sex group and an effort was made to have about 30 males and 30 females in each age group though this was not always possible. At about 30 in each group, the standard error ranged between 3-4 points on a standard scale for all the IVA+Plus (formerly IVA) scales. Many different ethnic groups were included in the normative sample, but this data has not been broken down. The normative data is available in the IVA+Plus (formerly IVA) program sub-directory and can be used in most cases to manually calculate the standard scores, except when the standard deviation is small and the percent raw score reported in the reports has been rounded before being displayed (mainly an issue with young adults who make few errors.)

IVA+Plus provides psychologists and other clinicians with a wealth of data

IVA+Plus provides psychologists and other clinicians with a wealth of data

All IVA+Plus (formerly IVA) scores are presented both as raw scores and as quotient scores. The basis for statistical analysis is the same as that used for most IQ tests; all quotient scores have a mean of 100 and a standard deviation of 15. Applying these familiar interpretative guidelines makes it easy for you to interpret test results.

IVA+Plus’ scores are divided into four categories — Attention, Response Control, Attribute and Validity. The primary IVA+Plus diagnostic scales are the Full Scale Response Control Quotient and Full Scale Attention Quotient scores.

The IVA+Plus Full Scale Response Control Quotient is based on separate Auditory and Visual Response Control Quotient scores. These Response Control Quotient scores are derived from visual and auditory Prudence, Consistency and Stamina scales:

• Prudence is a measure of impulsivity and response inhibition as evidenced by three different types of errors of commission on the IVA+Plus.
  

• Consistency measures the general reliability and variability of response times and is used to help measure the ability to stay on task.
  

• Stamina compares the mean reaction times of correct responses during the first 200 trials of the IVA+Plus test to the last 200 trials of the IVA+Plus test. This score is used to identify problems related to sustaining attention and effort over time.