Once you have read the instructions below:
Instructions
You will need Flash to run this experiment.
Click anywhere within the white box as quickly as you can when the dot appears. Your reaction time will be measured.
The reaction timer will test your reaction time to the light turning green.
It tests your reaction 5 times.
Good luck!
You can also try another reaction timer, which comes with data from other countries with which to compare..
Teachers resources
For more details see Teachers' Notes: