Hi, I'm studying to take the GMAT test. I took two GMATPrep tests (one about 3 weeks ago, one today), and my scores were 700 and 730.
I too am concerned about how accurately will the test score translate to my real score. I forgot to write down the individual points (silly me), but do remember that on the second try (score 730) I got 11 math wrong and 6 verbal wrong. So answer-wise math isn't looking too good, but somehow the score ended up as high as it was, and I'm concerned that come exam day the score computer won't be so generous.
I am studying several prep books and focusing on the quant section. The biggest issue for me is time though. I am able to finish the verbal section with 30 minutes left on the clock, since errors and other verbal points seem immediately obvious without the need to think too much. Not so on the math. I am able to solve most problems if I get to think a bit, but two minutes is just too little. As soon as I fully grasp the general path of the solution and start working out the details, the pace timer runs out, so I end up rush-guessing a lot so as not to run out of time.

Anyone has experience with specifically how much does quant scoring differ on GMATPrep from the real deal? Thanks