TOVA Test Free Online
Measure your focus, impulse control, and response variability with our science-informed Test of Variables of Attention (TOVA) simulator. Get professional insights into your attention patterns for free.
21.6m
Full Clinical Duration
98.2%
Accuracy Required
200ms
Target Reaction Time
4
Main Attention Scales
What is the TOVA Test?
The Test of Variables of Attention (T.O.V.A.) is a computerized assessment used to measure a person's attention, particularly in the diagnosis of ADHD. Unlike personality questionnaires, the TOVA is an objective performance test.
It measures your response to visual or auditory stimuli over a sustained period. The test evaluates four key performance areas:
- Consistency (Response Time Variability)
- Focus (Omission Errors)
- Impulse Control (Commission Errors)
- Processing Speed (Mean Response Time)
Objective ADHD Assessment
While self-report tests capture your internal feelings, the TOVA test captures how your brain actually performs during a repetitive, boring task — which is where ADHD symptoms often become most visible.
Visual vs Auditory Attention
The TOVA assessment is typically conducted in two formats, each targeting different sensory processing pathways in the brain.
Visual TOVA Test
The visual version involves watching a screen for a specific geometric target. It is the most common format used for ADHD screening and evaluating the effectiveness of medication.
Auditory TOVA Test
The auditory version uses sound tones instead of visual targets. This is critical for individuals with visual processing issues or for a more rounded profile of attention capacity.
Interpreting Your Results
Response Time Variability
This measures your consistency. A high score suggests that your attention level fluctuates, making it difficult to maintain focus over time.
Omission Errors (Focus)
Occurs when you miss a target. This directly correlates to inattention and 'spacing out' during routine tasks.
Commission Errors (Impulsivity)
Occurs when you click for a non-target. This is a primary indicator of impulsivity and difficulty with behavioral inhibition.
D-Prime (Performance)
A statistical measure of how well you distinguished between target and non-target stimuli. High D-prime indicates high efficiency.