Multiple Choice questions have radio button options Enable Negative Marking and Enable Partial Credit. Both are left empty by default, so question would be graded using default grading logic. Saving a question without selecting either radio button, and then returning to edit the question shows the Enable Negative Marking radio button selected.
- Create an assessment
- Insert a Multiple Choice question
- Fill out required fields, do not enable Negative Marking or Partial Credit
- Click Save
- Click Edit next to the question - note Negative Marking is now enabled