Grading a survey?

I need some help!

I want to add a survey to my course that has the ability to track the participants answers and provide them with a score. For example, using a 5 point likert scale students will select the choice that most applies to them (strongly agree to strongly disagree). Then based on the responses the student selected, a score will be assigned. "You scored a 45! That means you are ..." And each score will tell the participant how well they currently know or understand a topic.

Basically,  I want to be able to create something similar to this survey.

http://www.mindtools.com/pages/article/newTMM_60.htm

Any suggestions or ideas?