Our multiple choice exam was clearly too difficult.
- N questions.
- N + 10 total duration (in minutes).
- All questions have the same value (100 / N).
- Wrong answers have a penalty of 25% (25 / N).
- Only one correct answer per question.
What strategies do you recommend to consider reviewing the grades?
What we though of:
- Remove the penalty for wrong answers.
- For each student, increase the value of each correct answer.
- Add X (e.g. 10 points) to each final result.
- Add X% (e.g. 10%) to each final result.
- Remove the questions with worst performance.
We can combine options and each one has advantages and drawbacks. Note that we use absolute grading (not grading on the curve).
What is your experience?
Follow-up: Thank you all for the feedback. In the end, we decided to review each question. In some cases (four in total), we decided to consider as correct some of the incorrect options that were not 100% clear (and had a significant number of students choosing them). Plus, we added a bonus of +1 points to all students. We kept the penalty for wrong answers since it would be unfair to remove it.