Test grading

I was disappointed in how the students performed on my question on the exam. I asked a question that I considered a gimme - it was on the major points of my lecture which were quite clear - both from the lecture and the handout. What was really weird was almost the same number of students received scores on the question of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10. In other words no curve but flat. Some students did not even attempt to write anything down. Now if this were a course for Freshmen I could make an excuse that some of the students should not be here at this time but this is a Graduate course.