Colorful Reaction Time Tester

Use this test to find out how fast you respond to different colors. First choose a background color from the table. When you press the "Start" button, the background of your computer monitor will change color after a delay. When the color changes, click on the "Stop" button. See if there are any differences in your reaction time to the different colors.

NOTE: this test does not work if you are using an Internet EXPLORER browser. All versions of NETSCAPE will work.

Change background color to:

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