While Edit Mode set to Off would give a very good idea of how the student would see the course, Student Preview will create a temporary student account on the course so that the instructor will see exactly what a student sees. This includes the ability to take tests and receive results.
Student Preview may be activated at any time by clicking on the icon that looks like an eye to the left of Edit Mode.
Student Preview Icon
A temporary student account will then be created for you allowing you to view the course as a student.
Student Preview activated
Clicking on Exit Preview will close Student Preview.