I just tested CBM in a quiz. The table of results seemed a bit harsh to me. Given a question weight of 1, the actual grades are shown below.
|Answer||Not Very||Fairly Certain||Very Certain|
Is the negative -2 weight an error or by design? If by design, why so harsh compared with the rest? Seems unbalanced. I would have thought a -1.0 or -1.33 would have been more balanced. A quiz of one question gotten wrong but confidently right would yield a grade of -200 percent. How would that average with other quizzes?
Would anyone else like the ability to control the minimum overall grade for a quiz under these situations?