Jen -
You can find out lots of info on a wonderful website called

www.hoagiesgifted.org

There are different ways to "grade" giftedness, and hoagies website has some info on that. But, read this link:

http://www.hoagiesgifted.org/assessing_gifted.htm

There is a difference between testing and assessment. The numbers you have are "necessary, but not sufficient" to assess your DS's needs. So, I would frame the question, What does he need at this point? Maybe grade acceleration is the right thing to do, and maybe his behaviors will improve, but you'll only know that if you make those changes. No decision is irrevocable, and if whatever change you make doesn't work out - re-assess.

I'm sure others on this board can help more with the MG/HG/PG classification...

Last edited by twomoose; 09/10/09 09:07 AM. Reason: cross-posted