I have a rubric with several content areas, and would like to assign points at 0.5 intervals. But the drop-down list of point choices is nuts. For example, one area is worth 4 of the 40 points in the assignment. My point ranges are: excellent (4), satisfactory (3- 3.75), and unsatisfactory (0-2.75). There are 11 choices to award points in satisfactory and 4 for unsatisfactory. None of the choices in unsatisfactory is 2.5, 2.0, etc. But I could choose 1.83333 (?@#$@*$?!).
Am I missing something that allows me to set the increments? If not, what is the rationale for the increments (and why is it so different for different point ranges? Would this not happen if I used percent ranges instead of point ranges?