Sorry, didn't know where to put this. I have been taking the Knewton online course for about a month now. I've taken 3 practice GMAT's with them and one with Manhattan GMAT. A few days ago I just started doing problems in the Official Guide for the GMAT. To preface, math is my weakness! So bad in fact that with the Knewton practice tests my Quant scores have ranged from 21-28. Yesterday I took a Manhattan GMAT practice CAT and I found the math to be MUCH easier. So much easier that I scored a Q35. For me that's a big deal. Then to make matters even more confusingI found the math problems to be MUCH easier in the Official Guide than in any of the practice CATS I've taken with Knewton. Can anyone shed light on this? Have you all found the math to be easier in the Official Guide than in your MGMAT, Knewton, Kaplan, etc courses?? The Manhattan GMAT prep score that I got the other day really gave me the confidence I was seriously lacking. Anyway, just wondering.
The Official Guide's math questions are, generally speaking, not as difficult as they could be.
Any CAT, whether from a test prep company or GMAT Prep, is likely to show you (if you are doing reasonably well) questions that are harder than almost any of the ones in the OG. Having said that, the range in your scores is very large, and I would be nervous about assuming that any of them are "accurate." I wouldn't assume that your "true level" is either 21 or 35. It's probably somewhere in between. The best way to gauge where you really are is to take a GMAT Prep test, but unfortunately you can only do this twice without seeing repeat questions, so you need to weigh how much you want to know your level now vs. how much you will want the realistic practice later.
