How can I protect my survey from getting duplicate or fraudulent responses?

The simplest way to ensure that only specific people can respond to your survey is to create a Contact List with the email addresses of the respondents and then distribute the survey using the built-in Qualtrics Mailer. Depending on your needs, the options listed below can offer even more protection.

If you do not have a list of email addresses or you plan on posting an Anonymous Link for anyone to take your survey, then Qualtrics offers several basic survey security options that can deter - but not prevent - duplicate and fraudulent responses:

There are several methods that can require respondents to 'login' to access the survey:

Note that Qualtrics also offers a premium Fraud Detection service but these features are not included in Wayne State's license at this time.