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Stroop Active Task Export Format

In the Stroop Active Task, the participant is prompted with text shown in a specific color. The text and color may not match (e.g., the screen may show the text "RED" printed in blue). The user is given multiple attempts.

When your project uses the CSV export format for Survey Results, data for Active Tasks is exported in the file SurveyStroopResults.csv. When your project uses the JSON export format, Active Task data is included in the file SurveyResults.json.

For a typical survey using this task, you'll expect to see:

  • One survey result each time the participant completes the survey.
  • One step result representing the Active Task.
  • Multiple Stroop results for that step, one per attempt. The default is 10 attempts.

Data Fields

Field Description
SurveyStroopResultKey

A unique, auto-generated observation ID for a single Stroop attempt.
SurveyStepResultKey A unique, auto-generated key for this step result. Can be used to cross reference with other survey results.
SurveyResultKey The key for the survey result which this step result is contained in. Can be used to cross reference with other survey results.
ParticipantIdentifier The identifier of the participant this task was for. Can be used to cross reference with Participants.

StartTime

A device timestamp marking the time the prompt was shown to the participant.
EndTime

A device timestamp marking the time the response was given.
ColorSelected The selected color.
Color The actual color of the text on screen.
Text The text on screen.
StroopStyle Whether the stroop prompt was a colored box or text. Values may be 'text', 'box', 'text-underlined', or an empty string (which also indicates a text prompt).
StartDate The timestamp for when the participant started the stroop attempt, in ISO 8601 format. Includes timezone offset information.
EndDate The timestamp for when the participant completed the stroop attempt, in ISO 8601 format. Includes timezone offset information.

Sample CSV Export

SurveyStroopResultKey,SurveyStepResultKey,SurveyResultKey,ParticipantIdentifier,StartTime,EndTime,ColorSelected,Color,Text,StroopStyle,StartDate,EndDate
1111-22222-33333,aaaa-bbbbb-ccccc,dddd-eeee-ffff,TestID54,1373088.8995212084,1373090.3259005419,YELLOW,YELLOW,YELLOW,box,2021-01-11T20:26:00-05:00,2021-01-11T20:26:00-05:00
4444-55555-66666,aaaa-bbbbb-ccccc,dddd-eeee-ffff,TestID54,296450.43805833336,296451.15387975,GREEN,BLACK,GREEN,text,2021-01-13T11:14:14-05:00,2021-01-13T11:14:14-05:00

Sample JSON Export

Note that since the JSON export is included in the SurveyResults.json file, some of the reference keys either do not apply, or are part of the overall survey step data.

{
  "StartTime": 352826.858265703,
  "StroopStyle": "text",
  "Color": "RED",
  "Text": "BLUE",
  "Type": "StroopResult",
  "EndDate": "2020-01-03T11:04:55-0600",
  "EndTime": 352828.750705862,
  "Identifier": "STROOP_4_PRACTICE",
  "StartDate": "2020-01-03T11:04:55-0600",
  "ColorSelected": "BLUE"
},
{
  "StartTime": 352831.06391320005,
  "StroopStyle": "box",
  "Color": "RED",
  "Text": "RED",
  "Type": "StroopResult",
  "EndDate": "2020-01-03T11:04:59-0600",
  "EndTime": 352832.273214424,
  "Identifier": "STROOP_4_PRACTICE",
  "StartDate": "2020-01-03T11:04:59-0600",
  "ColorSelected": "RED"
}