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Michael_Cooksey
Administrator
22 days ago
Question

Preventing Duplicate Survey Submissions

  • January 30, 2024
  • 3 replies
  • 1060 views
J
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Hi Qualtrics Folks,

 

I was wondering if anyone had advise on preventing duplicate survey submissions for a biannual survey? 

 

Our study is on housing insecurity and our population frequently changes addresses, phone numbers and emails. To make sure we reach as many of our 1300 participants as possible, we send out personal links in the mail, via email distribution, and also text distribution every six months. Some people are completing their mail survey as well as email and text, thinking they are different surveys, we can only compensate them for one of these submissions and it frustrates them (understandably, the surveys are long).

 

All participants have an external data reference ID attached to their answer as well as First Name and email on file. Does anyone have advice on preventing them from answering the survey over multiple communication methods?

3 replies

Sachin Nandikol
QPN Level 6 ●●●●●●
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  • Sachin Nandikol
  • QPN Level 6 ●●●●●●
  • 462 replies
  • January 30, 2024

Hi @JJ314,

You can activate the 'Prevent Multiple Submission' option in the survey settings. For additional details, please click on the following link to access the support page: Click Here.

 

If you have already attempted the suggested solution and the issue persists, please proceed with the following steps:

1. Add an 'Embedded Variable' in the survey flow (e.g., V_Response).
2. Implement a Branch logic as follows: "If V_Response = Empty," include your survey question blocks below.


3. Introduce another Branch logic: "If V_Response = 1," add your End of Survey section. Here, you can display a message informing them that they have already submitted their response.

Whenever an individual receives a survey link via Email or Text, the variable 'V_Response' will initially be recorded as empty. Upon completing the survey for the first time and submitting their response, 'V_Response' will be stored as 1.

If they attempt to retake the survey through Email or Text, the branching logic outlined in the third point will direct them straight to the end of the survey.

Please confirm if this solution aligns with your requirements.

Sachin
J
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  • JJ314
  • Author
  • 1 reply
  • January 31, 2024

Hi Sachin,

 

Thank you so much for your response! I have tried the 'Prevent Multiple Submission' option but it does not prevent submissions through text, email, and mail when a send out additional distributions to capture participants who did not respond to the first email or personal link.

 

I would love to try this workflow options but I do not have a V_Response variable to select, would you have any advice on how I get this option to appear? Thank you again for your help!

Sachin Nandikol
QPN Level 6 ●●●●●●
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  • Sachin Nandikol
  • QPN Level 6 ●●●●●●
  • 462 replies
  • January 31, 2024

Hi @JJ314 ,

 

V_Response is an example I have taken for reference. You can add a new Embedded variable and rename it accordingly.

To add a Embedded variable, go to Survey Flow - add an item - Click on embedded variable. For your reference please follow below link:

https://www.qualtrics.com/support/survey-platform/survey-module/survey-flow/standard-elements/embedded-data/


once you add Embedded variable move them to the top by using Move option. Your survey Flow should start with Embedded variables and then the rest of your survey and other logics.

 

let me know if you want anything else.

 

Sachin

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