Hi,
We try to make our
Manhattan GMAT tests reflect the official GMAT CAT as accurately as possible. However, since the mba.com exams use the same algorithm as the official GMAT and also use questions that have actually appeared on the exam, they are a better judge of your ability than our exams. Our exams can define your ability within a 50 point margin, whereas the official GMAT and the mba.com tests can define your ability within a 30 point margin. This means that you can take the official GMAT two days in a row and get a 670 and a 700, or a 670 and a 640. We've heard that our tests are in fact a little bit more difficult, but I'll let you be the judge of that. Do let us know how you did on the exam though!
Best of luck on your exam today! Sounds like you're ready!
Best Wishes,
Caitlin Clay
Student Services Associate
Manhattan GMAT