Q. What's a typical reaction time?
Most adults land at 250-300 ms for visual stimuli. Trained gamers and athletes get below 200 ms, while children and seniors are often 350 ms+. This test averages five attempts in milliseconds and shows your percentile.
Q. Why does clicking on the red screen count as a fail?
Anticipation isn't reaction. A pre-click is a guess, not a response to the stimulus, so it's discarded to keep your average honest.
Q. How is Go/No-Go different from classic mode?
Classic mode rewards any click after the cue. Go/No-Go only counts the correct stimulus and penalises wrong ones — so it measures your selective reaction and decision speed.
Q. Why average over five attempts?
A single trial swings wildly with luck or focus. Five attempts approximate your true reaction time, and the test also shows a trimmed average without outliers.
Q. How can I improve my reaction time?
Consistent practice, good sleep, sensible caffeine, and sport-style visual drills (peripheral vision, anticipation) all help. Five minutes a day with this test usually shaves 20-50 ms off your average in 1-2 weeks.
Q. Why are mobile times slower than desktop?
Touch involves finger travel; mouse only measures the click. Mobile is typically 30-80 ms slower. The leaderboard pools both, but tracking your own trend over time is the most meaningful comparison.