Survey/Assessment with private results

I am starting work on a Storyline module that will include a self-assessment type survey for the user to complete.  The user will see a results slide that is specific to the answers they provide.  A concern has come up that users may worry about confidentiality of their answers, as this course will eventually be made available to employees of a company through their LMS.  I know there is an option to change the tracking used by the LMS to slides viewed, instead of tracking quiz results.  If I choose the "slides viewed" option, does this mean that the quiz results are unavailable to the LMS?  Or would they still be reported/visible to those with access to the LMS?  How have others dealt with questions of confidentiality/privacy in e-learning modules?