The TOVA

The T.O.V.A. promotes data based clinical decision making with its objective information about attention and impulsivity - information that clinicians do not obtain from behavior ratings and history Alone, the T.O.V.A. correctly identifies over 86% of ADHD cases and the "hit" rate improves with the addition of other clinical information. However, as is true with all tests, the T.O.V.A. does not make a diagnosis - only a clinician does.