EyeGuide Focus rejects abnormally low baselines. If the athlete intentionally "messes up" on the test, the system will notice.
There is no such thing as performing "too well" or getting a 100% on the test. (In statistical terms, we say the test scores have no "ceiling effect.") Therefore, impaired performance on the test cannot be disguised.
No matter how good you are—if you're impaired, your score will drop.