Pardon the delay,
AlexSgmat. I probably should not have posted right before a lesson, but I was not sure how long it would take you to reply, or how much of your ESR you would choose to share. Just as I suspected, if you look at the average difficulty of the questions you were missing across the board, it was low-medium to medium, so you never had a chance to prove yourself on tougher questions and earn a better score for the section. Simply put, if you miss a medium question, you are telling the algorithm to toss you something easier that may be more at your level, and you dig a hole that it may take 2-3 questions to climb out of. Miss one of those questions, and the process begins anew. Before you know it, you have completed an entire section, but an easier section, and your score reflects such a performance. That said, Reading Comprehension is fantastic, so there is no reason your Critical Reasoning should suffer. Your CR split of counted questions is 3/5. (It is typically an even 4/4.) So, for Analysis/Critique questions, you answered 2/3 correctly, and in Construction/Plan questions, you answered 3/5 correctly. Your Sentence Correction accuracy hamstrung you on the rest of the questions. You evidently need a stronger grammatical foundation, the nuts and bolts of sentence construction, and a minute and a half per SC question is okay, but could be more efficient if you felt more confident of those grammatical rules and conventions.
To get better, you want to focus on
not missing any low-difficulty questions, something on the order of 95 percent accuracy or higher
per question type. If you cannot reach such accuracy, then there will always be that chance that you could hit one of those snags and remain in low-scoring territory. On Medium questions (by official designation, not 600-700 level on any third-party questions), you want to shoot for 80 percent accuracy or higher. Together, these benchmarks will virtually guarantee that even if you were to miss the same number of questions, your score would come out much higher. In fact, I have advised two students to do away with studying Hard questions altogether, and they both earned a 730 total score. You have to keep in mind that the exam is much more punitive on lower-level questions than it is rewarding on upper-level questions. Of course, you will only see those tougher questions if you do not flub easier ones, so work from the ground up. Whether you choose books or an e-course, you will want to get your approach in top shape before you sit the exam again, or you will almost assuredly end up on a similar score and be asking yourself why you did not improve.
If you need to bone up on theory, I would suggest the
GMATNinja resource collection series, accessible by the signature at the bottom of any post that GMAT Ninja has made. If you have a master teacher and a drive to succeed, as well as the diligence to work hard to achieve your goal, then there is little to stop you.
Good luck.
- Andrew