Welcome to the STROOP Experiment Page

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Welcome to the STROOP Experiment Page
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Lab Instructions

• In this experiment we will provide a
  demonstration of various forms of the Stroop
  Effect.
• You are to name the font color used for each
  word presented at the top of each question.
• NOTE, it does not matter what the word says, what
  is important is that you choose the color
• Just like in a multiple choice test you choose
  the button that corresponds to the correct
  answer.
• Respond as quickly as you can, but try to be as
  accurate as possible
• This experiment calculates reaction time so it is
  testing how quickly you can respond
• In the entire experiment, you will be presented
  with four blocks (i.e., sets) of trials.

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Block One

• Click on the arrow below when you are ready

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Red

• Choose the correct print color.
• Blue
• Red
• Green
• Purple

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Purple

• Choose the correct print color.
• Blue
• Orange
• Green
• Purple

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Green

• Choose the correct print color.
• Yellow
• Purple
• Green
• Red

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Block Two

• Click on the arrow below when you are ready

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Blue

• Choose the correct print color.
• Blue
• Red
• Orange
• Purple

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Orange

• Choose the correct print color.
• Red
• Orange
• Green
• Purple

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Yellow

• Choose the correct print color.
• Purple
• Yellow
• Green
• Red

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Instructions

• For the next set of blocks you are to name the
  animal presented at the top of each question.
• REMEMBER, it does not matter what any words say,
  what is important is that you choose the animal
  name
• Again, respond as quickly as you can, but try to
  be as accurate as possible

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Block Three

• Click on the arrow below when you are ready

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Rabbit

• Choose the correct animal name.
• Horse
• Dog
• Goat
• Rabbit

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Sheep

• Choose the correct animal name.
• Horse
• Cow
• Sheep
• Rabbit

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Dog

• Choose the correct animal name.
• Horse
• Dog
• Goat
• Rabbit

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Block Four

• Click on the arrow below when you are ready

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Horse

• Choose the correct animal name.
• Horse
• Dog
• Cat
• Cow

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Sheep

• Choose the correct animal name.
• Cat
• Dog
• Horse
• Sheep

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Lion

• Choose the correct animal name.
• Horse
• Lion
• Cow
• Rabbit

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Lab Explained

• This experiment was modeled after what is known
  as the Stroop Effect. It is named after J. R.
  Stroop, who developed the experiments based on
  this task in the 1930s.
• In this task you are confronted with what is
  called an interference situation
• In one situation the word spells out a certain
  color, but it is presented with a different ink
  (e.g., green).
• In another situation animal names either match or
  conflict with a presented image.
• Because we are have so much practice at reading,
  it has become automatic and we can not stop
  reading even if when we try.
• When we do try, it is so difficult, our responses
  to the interference items are slower.
• On the next page are the mean reaction times for
  you experiment.
• Following that are your assigned readings and
  your homework assignment for this lab.

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milliseconds
Stimulus Type
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Lab Homework Assignment

• Follow this link to the electronic reserves for
  this course and download the following article
• Bower, B. (1992, May 9). Brother Stroop's
  enduring effect. Science News, 141, 312-313, 316.
• Stroop, J.R. (1935). Studies of interference in
  serial verbal reactions. Journal of Experimental
  Psychology, 12, 643-662.
• After reading the articles answer the following
  questions
• Because the Stroop effect does not only occur
  with words/colors, list and explain two other
  situations where it may occur?
• What do you think would happen if your
  participant was just learning to read English?
• 3. In the article by B. Bower, he mentions two
  general categories of theoretical explanation for
  the Stroop effect, explain what are they?
• 4. In the article by B. Bowers, what did the
  research by McCleod and Dunbar show about the
  Stroop Effect?

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Thank You!
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