[ARCHIVED] Can I choose how to automatically score a multiple answer question?

[fnkara]

Can I choose how to automatically score a multiple answer question?

If not, if the automated rubric is set, then I have a suggestion for a better scoring system.

As I see it, each possible answer has a "right" response - either to select it or not. It's akin to the principle in experimental science that a null result is still a result, still information. This is neglected in the current schema.

For example, say there is a question with five possible responses. For full credit, two responses that apply and should be checked, and three that do not apply, and should not be checked. The student not only needs to know the information to select the applicable options, but also needs to know, based on what they studied, that the others do not apply. So each choice on each possibility is informed by their knowledge, whether or not it should be selected. In light of this, they should get partial credit for each possible answer, according to whether they correctly choose to select it or not. In this example, each possible answer would then be 0.2 points, for a total of 1 for the question. If they select two answers as applicable to the question, and one of the selections was correct and one not, then they would get .2 points for the correct one and 0 for the incorrect one. Another of the possible answers should have been selected, but wasn't, so that one also gets 0. The other two possible choices were *correctly* left unselected, so that would result in .2 +.2 = .4. The total then would be .6 for this question. The current algorithm scores the same thing as 0, because it gives +.5 only for the one correctly selected possibility and takes away .5 for the incorrectly selected possible choice, and gives no credit for correctly leaving two answers unselected.