In psychology, the Stroop effect Test is a demonstration of the reaction time of a task. When the name of a color for instance Blue, green,or red is printed in a color not denoted by the name exp: the word "red" printed in blue ink instead of red ink, naming the color of the word takes longer and is more prone to errors than when the color of the ink matches the name of the color. The effect has been used to create a psychological test that is widely used in clinical practice and investigation.

The Stroop effect has been used to investigate the psychological capacities of a person since its discovery while during the twentieth century it also became a popular neuropsychological test.

This test is considered to measure selective attention, cognitive flexibility and processing speed, and it is used as a tool in the evaluation of executive functions. An increased interference effect is found in disorders such as brain damage, dementias and other neurodegenerative diseases, attention-deficit hyperactivity disorder, or a variety of mental disorders such as schizophrenia, addictions, and depression.

Go a Head How well you can identify colors and how your ability can be altered