At 12:39 PM 5/31/2012, Corey Andreasen wrote: >The thing that bothers me about systems like this is that it seems >to give legitimacy to the totally arbitrary scale that says "90% is >an A." There is no legitimacy to such a scale.
Corey: Grading is always a subjective activity ... no matter how you do it ... it's that way. The fact that you have some set scale only means it might be simpler for you to do it but it doesn't make it any more objective.
I have challenged folks on the list before ... to tell me what a kid in APstat can do ... who got say a B that can't be done by someone who got a C. No one seems to be able to make such differentiations.
It's the same on the APtest ... can anyone tell me what a student who got a 4 can go that one who got a 3 can't? NO .... can't be done. The scores just don't have that sort of information built into the values.