# Tweaking the Assignment Module – #2

In my previous post I explained how I had gone about customizing the Assignment Module. In this post I’ll show you how I visualized the data and explain briefly what I did.

I started out by setting a few properties. I did this just as a baseline, knowing that my client may change them.

The first properties I set were the above and below values. I knew that there would be three groups of Users. The first group would be all the Users below 49%. The second group would be between 50% and 80%, and the last group would be 80% and above.

The second property I set was for the number of random Users to select in each of the three groups. I set this value to 2 because I only had 22 Users.

The first image shows three things:

1. A count of the number of Users in each of these three groups.
2. The lowest, average and highest grades achieve.
3. Six Users, two from each group that have been randomly selected for moderation.

So far that’s pretty easy, and a few simple queries will get the job done.

Next I plotted these counted values (10, 9, 3) on a line chart. It wasn’t really necessary, but it’s nice to show the data visually.

The blue line showed an actual count of the Users in each of the three groups. The red line showed the desired count – more Users in the middle group. I obtained the red line by grading the students on a curve, and recounting the number of Users in each group.

The first thing I did was set the desired minimum and maximum values.
Once those were set, I used the formulate from the wikihow site, and regraded each student. (http://www.wikihow.com/Curve-Grades)

f(x) = y1 + ((y2-y1)/(x2-x1)) (x-x1) 