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Stroop (Color) Task

Overview​

  • Users identify the color of words, which are incongruent with the text of the word itself.

Stroop Test Data Structure​

The Stroop test in the MCI screening assesses the user's cognitive ability to distinguish between the color of text and the word itself.

Structure Overview​

Key: "stroopTestData"

Description: This key contains the user's responses for each instance in the Stroop test. The response data structure for this task is detailed below:

Object Structure​

  • skipped: A boolean indicating whether the user skipped the Stroop test.
  • frames: An array of objects, each representing a single test instance.
    • Each frame object contains:
      • word: The actual word displayed to the user (either "Red", "Green", or "Blue").
      • color: The color in which the word is displayed.
      • hadTrouble: A boolean indicating whether the user reported difficulty with this particular instance.
      • startTime: The timestamp (in seconds) when the instance started.
      • submitTime: The timestamp (in seconds) when the user submitted their response.
      • response: The color selected by the user as their response.

Example​

"stroopTestData": {
  "skipped": false,
  "frames": [
    {
      "word": "Green",
      "color": "Red",
      "hadTrouble": false,
      "startTime": 1703171027.308,
      "submitTime": 1703171028.602348,
      "response": "Red"
    },
    // Additional frame objects...
  ]
}

Notes for Implementation​

  • Ensure that the startTime and submitTime are accurately captured to assess the user's response time.

Note on Spelling in Stroop Task​

For the Stroop test, the term "color" is used following the American English spelling. This choice is due to historical reasons and there are no plans to change it to the British spelling "colour." Please ensure consistency with this spelling in all related materials and data handling.