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A question type that enables researchers to create skip pattern formulas by adding / subtracting / multiplying / etc. participant answers to questions.
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Steps to Create:
There are three “Stress” questions the participant will answer using the slider question type. The slider has a minimum value of one and a maximum value of 10, in which the step value (or increment value) is by one. The values from these questions are recorded and used in the Calculated Field question type in order to present one of two statement to the participant for this example.
If the sum values of “StressQ1,” “StressQ2,” and “StressQ3” are greater than or equal to 15, “StressA2” will be prompted to the Participant. If the sum values are less than 15, “StressA1” will be prompted to the Participant.
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To get started, create the slider questions.
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Creating Slider Questions |
Click “Add a New Question” to create a new question and select the desired question type.
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For this example, the Slider Question Type is used.
“StressQ1” asks the Participant to rate their stress level.
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Clicking “Next” to assess the Settings form where parameters can be set and later used in the Calculated Field Question Type.
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Click “Done” once parameters have been completed. Next step is to create the statements that are prompted to the user.
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Please Note: use the above steps to create “StressQ2” and “StressQ3.” |
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Creating Statements |
To create a Text Only statement, click “Add a New Question.”
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For this example, participants should receive one of two statements based on their responses to “Stress1,” “Stress2,” and “Stress3.”
“StressA1” will be presented if the response values are below a certain threshold set in the Calculated Field Question Type.
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“StressA2” will be presented if the response values are above a certain threshold set in the Calculated Field Question Type.
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Click “Done” once fields are completed.
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Creating Calculated Field Question Type |
To create a Calculated Field Question, click “Add a New Question.”
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Creating Calculated Field Question Type |
To create a Calculated Field question, click “+ Add a New Question” on the Questions tab in your study.
Select Calculated Field as the question type and complete the required fields denoted by '*'. Add
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your questions to be calculated into the Calculated Field Logic field
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. A list of available formulas for use can be found on this page ➡️ Useful EDC Formulas.
Function names are not case sensitive (i.e., DateDiff, dateDiff, and datediff are all equivalent).
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Sample Calculated Field |
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Adding Calculated Field items to assessments.
Click “Add a New Assessment” to set up the new assessment.
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A form will appear to allow filling out the assessment details and Assessment Timeout (minutes). When finished, click “Next.”
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The second section of the form allows you to add questions including Calculated Field items. Click “Save” to complete creating the new assessment.
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Question Creation |
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To find out more about the “Contains” and “iff” formula, please reference the EDC Formula Wiki Page.
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