Grade multiple choice exams for accuracy AND confidence like this

Instructions: Circle the correct answer. If you are unsure which is the correct answer, mark that by putting a (+) next to the question.

Grading: Incorrect, sure - 0 points Incorrect, unsure = .25 points Correct, unsure = .75 points Correct, sure = 1 point

Explanation: Because your goal is to get the right answers and be accurately confident about them, there are three things that can reduce your overall grade: wrong answers, underconfidence, and overconfidence. Marking which questions you are unsure of lets your overall grade reflect both these goals. Accurate answers and accurately assessed confidence gain you the most points.

Christopher Chelpka @christopherchelpka