I just tried going through ther Pearson test. The questions are pretty good, but the software will not let you go through your mistakes, which is crazy.
What good does a score do me in math and verbal, but not be able to learn anything from it. I think the best tests are from Kaplans website and Upstartraising.com.
GMAX, which is recommended by this site use their tests exclusively. As far as Kaplan goes try and get the website which gives 5 CATs and 5 linear tests (non-CATs), which can help very helpful in narrowing down problems.
I personally like Kaplan more because they give you a full report in all your deficient areas.
If anyone has any questions, don't hesistate to ask.
THX,
wiseguy