Optional: Restricting access to a quiz is a great tool for differentiation. For example, teachers can create a modified version and restrict it to only the students eligible for that version. The most commonly used restrictions are by date, group, and user profile.
Multiple Restrictions
Teachers can add multiple restrictions to a quiz, such as by student last name AND a group. Alternatively, you can add a restriction by student name OR a group. Pay attention to the "And" or "Or" indicator between the groups as this affects access to the quiz.
Showing Restrictions
The eye next to the restriction settings indicates whether or not the details of the restriction will show on your course page. For this reason, it is important to be intentional about 1. how you name your groups and 2. whether or not you show or hide restrictions on your course page.