Your Surveys can be identified via custom visitor information if you pass that data into our system. The identifier can be an email address, account number, or any other unique identifier you choose to pass into Crazy Egg.
Implementation:
Sets an identifier for the survey. The value passed in can be any value. It could be an email address, a username, or a numeric user ID. On the survey results dashboard. Keep in mind that the identifier will be set only if the visitor completes the survey.
CE2.identify(identifier)
identifier: A String
window.CE_API || (window.CE_API = [])).push(function(){
CE2.identify(userID);
});