I want to limit the access of my survey to a restricted list of users. That is I don't want everyone on internet to be able to answer to my survey. Moreover I want to be able to know exactly who answer what, so a non-anonymous survey.
Can you please explain me how I set up these options, how I set up the closed group list of participant and how I monitor whether they have or not already answered partially or totally the survey.
How does it work? Do Limesurvey generates a username and a password for each person in the closed group of participant? I want Limesurvey to automatically send an invitation email with these information.