A few of the observations I completely agree and a few I don't
I fall into category of Non-native speakers, who are strong in quant and weak in verbal
1) There are too many posts in the forum, in which the non native students claim to get higher 700s with support from one or other test prep companies. It is not uncommon to find test prep companies awarding coupons (may be $20 gift certificate) to write such a feedback. Also I do agree gmatclub has checks and balances to verify genuine ones from counterfeits. But you cann't deny the incentives given by test prep companies to write feedback in first place.
2) I completely agree that CR is one section which does test 'reasoning' to its complete spirit and I do not see natives have advantage over non natives or vice versa. Its all neutral.
3) However RC is a different ball game. Here natives have only a marginal advantage. Let me Explain. Lately if you notice a good number of passages in GMAT
OG are social science, economics, political science, history of certain development, the areas you will see more often in business school curriculum. You are expected to critically understand these passages and answer to the questions in B-school. GMAT is just a test trying to give that experience before you encounter b school. However I still do not understand why a person needs to understand topics i.e. Native American issues, Feminism, Chemistry, Geology and to that matter any other science topic. Experts ...any thoughts.
4) Coming to SC, I do not think grammar rules are that important, as long as you recognize the rules of standard written english. This section has both advantage and dis-advantage to a native speaker. You will be surprised the quantum of mistakes native speakers make when they put 'what sounds right' in SC problems. The non-natives work hard to get the sentences right. But here is one challenge to non-natives. A category of sentences known as "Rhetorical construction", which in other words known as common accepted usage of english. I m not talking about Idioms here, but the sentences
i.e. Can u spot the differences among these four statements ? They have completely different meanings.
a) Right now I am actually thinking about writing GMAT. (I am just planning to write)
b) Right now I am actually thinking about how to write GMAT. (as I do not have leave from work for next few months)
c) Right now I am actually thinking about GMAT writing. (in case you remember AWA section)
d) Right now I am actually thinking about writing for GMAT. (I am actually going to write a GMAT essay)
That may be a lousy example but you got the point. The test tries to trick you with subtle changes in meaning. As Non natives, we may or may not be in position to tell the difference. It needs a lot of practice to spot these kind of errors.
In summary, natives have a slight advantage in Verbal. But which standardized test is perfect ????
-SouthCity