Hi Somnath,
The ManhattanGMAT CAT Exams are a tool meant to help guide your studying rather than provide you with an exceedingly accurate score for test day. The GMAT itself can vary by up to as much as 30 points from your "true" testing level on a given day. Hence, if you are a 650 level test taker, you can score anywhere from a 620 to a 680 and still be at the same ability level. Our tests, which are re-calibrated for accuracy, can vary by up to 40 - 50 points depending on the test taker. With that said, if you are consistently scoring in the 670 - 710 range suggests that your overall range is a 620 - 720 on the low end and 660 - 760 on the high end, meaning that I would venture to guess that your score will be in the 660 - 700 range on test day.
These scores are actually quite good, so don't feel demoralized by the results. It's always hard to predict how you will perform on test day! The most accurate test out there, however, is one released by GMAC itself called
GMATPrep. Because this is released by the same people who administer the real test, its accuracy is superior to any test prep company's practice tests. Hence, I would suggest taking one or both of the GMATPrep tests offered in order to more accurately predict your score on test day.
Best,
Michael Dinerstein
Marketing & Student Services Associate
michael@manhattangmat.com
800-576-4628
212-721-7400