Hi,
You can allow access to
the quiz to a definite group of users, to look at this possibility
please go to the backend part of the component:
demo.ari-soft.com/administrator/index2.php?option=com_ariquiz&task=quiz_list.
While editing/updating a quiz you can also have a look at this
possibility. Besides you can deny access to the results of the quiz.
In order to do this don't set template for showing quiz results while
editing/updating a quiz. You can also set an e-mail for sending test
results.
Regards, ARI Soft