How the T.O.V.A. Test Works

At Blue Mountain Psychiatry, we utilize the T.O.V.A. (Test of Variables of Attention) to assess key aspects of both auditory and visual information processing with precision and accuracy.

The T.O.V.A. is a computerized, culture- and language-free test that does not require left/right discrimination or sequencing skills. It records responses to visual or auditory stimuli using a highly accurate microswitch (±1 ms).

This test evaluates:

• Response time variability (consistency)

• Reaction speed

• Impulsivity (commissions)

• Focus and vigilance (omissions)

Results are compared to a large, age- and gender-matched normative sample, as well as a sample of individuals independently diagnosed with ADHD. This allows for a clear, data-driven report that aids in assessment.

Taking the T.O.V.A. Test

The T.O.V.A. is simple yet effective. During the test:

• The visual version flashes stimuli on the screen. The subject presses a button when they see the correct shape.

• The auditory version presents two tones, requiring the subject to respond when the higher tone is heard.

The full test lasts 21.6 minutes (with a shorter 10.8-minute version available for younger children, ages 4 to 5.5).

Once completed, results are analyzed against a normative database to determine where the individual’s performance falls on a standard scale. Additionally, results are compared to data from individuals diagnosed with ADHD, offering valuable insights for clinicians.

Important Note:

The T.O.V.A. is not a diagnostic tool. While it provides essential data, only a qualified mental health professional can diagnose ADHD. At Blue Mountain Psychiatry, our specialists carefully interpret T.O.V.A. results to provide personalized insights and next steps for treatment.