Reaction time test
Wait for the screen to change, then click. Five trials, scored on the median, so one fumbled attempt does not define your number and one lucky one does not either.
Reaction leaderboard · Visual
What is a good reaction time?
Most people land between 200 and 300 milliseconds on a simple visual cue. Around 180 ms is genuinely quick, and the human floor sits near 100 ms because the signal has to reach the brain and come back out to your hand.
Why does the test use five trials?
A single trial is mostly luck. Five trials scored on the median mean one fumbled attempt does not define your number, and one lucky attempt does not either.
Why is the wait before the cue random?
The delay varies between roughly 1.4 and 4 seconds so the timing cannot be counted out. Clicking before the cue voids that trial rather than scoring it.
What is the difference between the visual and audio tests?
The visual test changes the screen. The audio test plays a tone and the screen gives nothing away, so you can look anywhere. Sound reaches the brain slightly faster than sight, which is why most people post a quicker number on audio, and why the two keep separate leaderboards.
How does go / no go work?
Amber means click and red means keep still. Only amber cues are timed, and taking a red one voids that attempt. Because you now have to decide rather than just react, times run roughly 80 to 150 milliseconds slower than the plain visual test. It is the closer match to a game, where the hard part is not reacting but knowing when not to.