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Psychology & human behavior science fair project:
Stroop Effect: Effects of Incorrect Shape Naming on Correct Shape Recognition

Science Fair Project Information
Title: Stroop Effect: observe if incorrectly named shapes interfere with or hamper our ability to recognize the shapes correctly.
Subject: Psychology & Human Behavior
Grade level: Middle School - Grades 7-9
Academic Level: Ordinary
Project Type: Experimental
Cost: Low
Awards: Second Place, Canada Wide Virtual Science Fair ($50)
Affiliation: Canada Wide Virtual Science Fair
Year: 2010
Description: In the first test volunteers were asked to call the name of shapes presented to them on cards as quickly as possible; time was recorded. Now, the order of shape presentation was changed and time was recorded again and compared to the first test. Results were tabulated and graphed.
Link: http://www.virtualsciencefair.org/2010/mercxv2
Short Background

Stroop Effect

In psychology, the Stroop effect is a demonstration of the reaction time of a task. When the name of a color (e.g., "blue," "green," or "red") is printed in a color not denoted by the name (e.g., 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 is named after John Ridley Stroop who first published the effect in English in 1935. The effect had previously been published in 1929, but only in Germany. The original paper has been one of the most cited papers in the history of experimental psychology, leading to more than 700 replications. The effect has been used to create a psychological test (Stroop Test) that is widely used in clinical practice and investigation.

The Stroop Effect test can also be adopted to investigate shape naming effects on shape recognition.

The test has additionally been modified to include other sensory modalities and variables, to study the effect of bilingualism, or to investigate the effect of emotions on interference. A similar effect has also been observed in individuals with grapheme–color synesthesia, people who perceive colors when seeing certain numbers and letters. If a number or letter is presented to such an individual in a color other than what they would perceive, there is a delay in determining what color the character actually is.

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Source: Wikipedia (All text is available under the terms of the GNU Free Documentation License and Creative Commons Attribution-ShareAlike License.)

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