To be able to select an assessment that will be related to the registration process is necessary that the user has site wide admin privileges, because the interface can only be reached through the Main Site Administration Page. This link only will appear if the Assessment Package is installed and mounted.
If the Assessment Package is installed and mounted, the link can be follow and will lead to a page that shows all the assessment that can be responded for anonymous users created in all of the diferent instances of the assessment package that could exist. If the option "None" is selected, it means that the registration process will be the same as always has been, if any other option is selected, the assessment will be diplayed when a user creates a new account.