Hi, I did the GRE Subject Math test on December 2006 and I am planning to take it again because I feel that I did low on the test. Today a friend that is planning to take the Physic test told me that when you take the gre general exam again your score gets averge with your previous score. I have googled trying to find if it was really true but I can find it.

So the question is, if I take the exam on Nov 2009 will my score get averaged with the previous one or the only score that will matter is the new one or the old one?