Test Instructions
A grey box will appear on screen and randomly turn black. You must react quickly by clicking/tapping when it turns black. The test runs for 30 minutes and measures your sustained attention and reaction time.
What It Measures
- •Sustained attention over extended periods
- •Reaction time to visual stimuli
- •Vigilance - remaining alert during long inactive periods
- •Impulse control - avoiding false reactions
How It Works
- •A grey box appears on screen
- •The box randomly turns black for brief moments
- •Click immediately when you see it turn black
- •Tests vary from 3-30 minutes - build your endurance
Expert Tips
- •Stay visually locked on the target area
- •Click immediately when the change happens
- •False clicks (clicking when nothing changed) hurt more than misses
- •Practice builds mental stamina for longer tests