Quiz

I am using 3.2 version, i use word select Question type to create Question. The problem i face, is  that when the student select 2 right answer and 2 wrong answer,  they get 0 mark.Is there any way to control it . like, i want they should get the right answer mark and for the wrong selection their should be a mark control system. If we want there is negative marking, we could decide whether or not to deduct mark, and how much mark should be deducted