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ADHD Screening

Test of Variables and Attention

The T.O.V.A. provides an objective measurements of attention and inhibitory control.  It aids in the assessment of, and evaulation of treatment for, attention deficits, including attention-deficit/hyperactivity disorder (ADHD).  

The T.O.V.A. is a culture- and language-free, computerized test that requires no left/right discrimination or sequencing. Responses to visual or auditory stimuli are recorded with a unique, highly accurate (±1 ms) microswitch. The T.O.V.A. calculates response time variability (consistency), response time (speed), commissions (impulsivity), and omissions (focus and vigilance). These calculations are then compared to a large age- and gender-matched normative sample, as well as to a sample population of individuals independently diagnosed with ADHD. These comparison results are used to create an immediately available, easy-to-read report.

The T.O.V.A. provides information that is not available through self-report or the report of others. It is used along with a clinical interview and subjective measures (such as behavior ratings) for a more comprehensive picture of academic, social, and personal performance and impairment. T.O.V.A. results should only be interpreted by qualified healthcare professionals.

T.O.V.A. FEATURES

  • Pre-school test (ages 4-5)

  • School-age test (ages 6-17)

  • Adult test with embedded performance validity (ages 17-80+)

  • Visual and Auditory Test formats

  • Custom-designed hardware precisely measures response time

  • Language- and culture-free stimuli

  • Standardized multimedia test instructions in 8 languages

  • T.O.V.A. Behavioral Observation Form

  • Extensively normed by gender for ages 4 to 80+

  • Immediately available, easy to read report

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