Excercise Stroop

• Is anyone familiar with the Stroop task?
• The original task deals with colour words and the colour of the ink that they are printed in.
• If I present the word blue in blue ink to a subject and ask him to name the ink colour, he is fast and accurate.
• If on the other hand I present blue in red ink, he is slower and makes mistakes.
• A version can be found at http://www.thewritingpot.com/stroop
• What are the variables (dependent, independent, controlled)?
• Describe an experiment to show the effect.