It's my understanding that as long as you're using MAP not P-MAP (for K-2nd) that you have the ability to get up to high school level. Because the test is "computer assisted" it adjusts the level of questions depending on the number of correct answers. So after a certain number right, it ups the level of difficulty.

Inky is our MAP expert, hopefully she'll stop by with more specifics. This is our first year dealing with MAP tests but my son has taken both MAP and P-MAP this year.