The Online Reaction Time Test
Click the large button on the right to begin.
Wait for the stoplight to turn green.
When the stoplight turns green, click the large button quickly!
Click the large button again to continue to the next test.
The stoplight may take up to seven seconds to change.
You may press any key, instead of clicking on the button, if you prefer.
You will be tested five times, and your average reaction time will be calculated.
The Online Reaction Time Test, © 2002 by Jim Allen
Exploring the Nervous System
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