Hi rajibgmat,

I believe I answered this question via e-mail this morning. For the sake of other readers, I'll post the response here:

Based on your results, I can’t conclusively say what your score is going to be for a few reasons. The first is that while the ManhattanGMAT practice tests are accurate, they do have a standard error of roughly 50 points (by comparison, the GMAT has a standard error of 30 points). However, because you consistently scored in the 690 range, it would appear that the standard deviation would be slightly lower, causing your score to be between 660 – 720. These results are also consistent with your performance on GMATPrep; however, because you have taken the exam so many times, it’s impossible to say that your success is due to content knowledge or simply seeing the same questions over and over again.

What I would say from here on out is to not worry about practice tests. They do nothing but gauge where you are currently testing. In order to build new skills, you must study the content of the exam by practicing real GMAT questions you have not seen or by studying content from Strategy Guides.

Also, keep in mind that even if your “true” ability level were a 710, this does not guarantee your score on test day! Remember, the GMAT itself has a standard error of 30 points. This means that if your “true” level was a 710, then you have a 2/3 chance of scoring in the range of 680 – 740!

Hence, what you need to do is go into test day as prepared as possible. Practice your timing, practice the content, and be prepared since this is all you can do. Don’t go in with a numerical expectation because it will distract you from the test – go in with the expectation that you will give it your all.

Best,

Thanks...Just a small correction.

CAT 3rd score was 670.

I scored 680 on Test 4th now. two more to go.

Hey Raj,

How did you do on GMAT on December 20th? Did you find a strong correlation between the MGMAT exams and the real Gmat? Just curious because I find the real verbal to be quite tough.