Anonymous link with survey incentive - preventing multiple responses | XM Community
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Hello - we are distributing a community survey via an anonymous link (QR code and shortlink posted on a flyer). We are incentivizing the survey with a digital incentive via Tango Card. I understand that incentives can be challenging when you don’t control a distribution list of pre-determined possible respondents. We will be sending the gift cards to an email that respondents enter at the end of the survey, but we don’t know what those emails are going to be ahead of time. I’m wondering what the best practice is for designing the survey flow and settings to prevent people from being able to complete the survey more than once.

Some of the security settings work as an initial barrier, but people can get around those by using different browsers and different devices. We’ll of course make sure that we only pay a given email one time.

Using the BHN Rewards Anonymous Survey Incentive feature, you can send rewards to respondents completing an anonymous Qualtrics survey.

BHN Rewards generates an End of Survey link that you can copy and paste into your survey. After completing the survey, respondents will be redirected to the BHN Rewards URL, where they can provide their email address or phone number to receive their reward. BHN Rewards includes a Duplicate Email Check feature to ensure that rewards are not sent to the same email address twice.

Alternatively, you can use the BHN Rewards workflow extension to set up the incentive and utilize the BHN Rewards approval controls to review respondents before distributing rewards.

 

Learn more :  https://www.bhnrewards.com/qualtrics-integration/ 

Hi Daniel - Thanks for the response but I don’t think this solves the problem. While both BHN and Tango allow for duplicate email checks, that does not stop the same person from taking the survey twice through different browsers and using two different emails. I’d like to prevent that, if possible.

@benjaminschenck - You should use as many of the the Qualtrics Fraud Detection tools as possible, especially RelevantID (duplicate and fraud) and Bot Detection.

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