In the attempts tab (A), choose how many attempts you want your students to have on this assignment: one, two, three or unlimited (B).
If you’re allowing your students to attempt the assignment more than once, decide if they should start over on each new attempt, or revise the previous attempt (C).
Starting over means your students will complete each assignment attempt from beginning to end, regardless of what they had previously answered correctly.
Revise the previous attempt means your students will return to the assignment and be able to edit what they had already submitted.
Next, decide whether you want to deduct a percentage from the scores of students who use additional attempts (D). You may want to apply a deduction to a quiz or an exam to encourage your students to prepare and do their best on their first attempts, while still having the option of attempting the assignment again if they need to.
Select compound the deduction for each attempt to increase the deduction a student will receive when completing each additional attempt by the percent you entered.
Allow for study attempts (E) if you would like students to be able to take assignments an unlimited number of times, without affecting their grade, after the due date has passed. To activate this policy you must set a due date and choose to auto submit on the due date. Students with assignment extensions will not be able to access study attempts until their extended due date has passed.