Assignment

Sock Puppet - In 1.8 average is the default behavior and I believe that it ignore not rated posts. In fact, I suspect it simply averages the ratings that exist so you would have to rate a post as a zero in order to have it lower the average. I'm speaking off of the top of my head and not actually looking at the code but I am reasonably certain that is what happens (in both 1.8 and 1.9). The problem I ran into as a teacher was that I could not keep track of which students I had already rated. As a result, I preferred to rate every post; however, I was looking for one quality/substantial post but also wanted to allow/encourage students to make shorter posts or questions in response to their classmates. As a result, I really wanted to use the max aggregate type since the average would lower the grade of the student who made a shorter response. But if you keep track of which students you have rated, then it should work fine for you (if I understand you correctly). Peace - Anthony