The respondents taking your survey can be validated by signing in to their Facebook account. Upon successful signing into Facebook account, the respondents will be allowed to access the survey. QuestionPro allows you to use Facebook Connect as an authentication method for the survey respondents.
To enable Facebook Connect authentication::
Facebook Connect allows respondents who take your survey to first authenticate on Facebook.com. Upon a successful authentication they will be allowed to take the survey.
You can also give the respondents the options to skip the authentication by selecting checkbox - "Enable Skip Authentication".
For every response the following data is stored for reference purpose:
This feature is available with the following licenses :