The famous "Stroop Effect" is named after J. Ridley Stroop who discovered this strange phenomenon in the 1930s.
Here is your job: name the colors of the following words. Do NOT read the words...rather, say the color of the words. For example, if the word "BLUE" is printed in a red color, you should say "RED". Say the colors as fast as you can. It is not as easy as you might think!
The Stroop effect is the finding that naming the color of the first set of words is easier and quicker than the second.