All tests
Private session
Test 01
Response observation
Reaction Time
Measures simple visual reaction speed over five rounds. Your score is the median, so a single slow blink won't skew the run.
- Measures
- Visual response latency
- Typical time
- About 1 min
Before you begin
- Wait for the surface to turn green.
- Click — or press Space — as fast as you can.
- Five rounds; the median is your score.
Press Space or Enter