My background: raised in the US, studied and currently work in finance. I'll attempt to provide my views on the test - my experience most likely aligns closer with native English speakers so please take with a grain of salt, but hopefully this can help at least one person!
My first exposure to the GMAT was taking a mock test about 4 months before the actual exam and I got a 670 (47Q 36V). What immediately jumped out to me, as I'm sure many have found out is the enormous time pressure the exam places you under. I've always been fairly good at test taking and time management - I've even taken all three levels of the CFA, and I believe the time management aspect for the GMAT is another beast altogether. I ran out of time for both sections.
After a few months using various recommended prep materials such as Manhattan, I still couldn't consistently finish - particularly on the quant section.
That's when I found what I believe is the best Quant resource out there: the
GMATClub tests.
The $70 for 25 practice quant exams were extremely helpful. Basically a month out from the exam I forced myself to take one practice quant exam per day, until I could consistently nail 49-51, but more importantly, finishing the section. I believe the practice tests here are much harder than the actual GMAT and cover some great concepts, and that if you can consistently finish these tests, you will have a ton of confidence heading into the exam. Doing the practice exams is also a great way to not only refresh general concepts, but also hone your "test taking skills" - when to skip problems, when to use shortcuts, when to approximate, when to guess, etc. - developing that instinct to be able to solve each problem, especially the harder ones, around that 2 min mark is crucial for a top score.
I think the GMATClub practice tests for verbal are a little weaker and my scores for those were all over the place. My strategy for verbal was mainly to study Sentence Correction, since I think that is the topic that has the most "rules" you can study and can be improved the most. While CR and RC can be improved, I think those are probably more limited for many in terms of natural reading speed, English comprehension, etc. Your score will likely also heavily vary depending on the passages on the actual exam - some will just "click" for you while others you'll read them and be like wtf
Glad to say I hit my target of 750 (50Q 41V) on the actual! And honestly I think this forum and resources was more valuable than any other out there, so thank you!
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