Hi
I would like to share my GMAT experience and appreciate feedback/strategies on how I can improve as I am not happy with the current outcome.
Preparation
In terms of preparation, I spread it over 3 months with varying levels of intensity, mostly studying for an hour after work on weekdays and 2-3 hours on weekends. Last 2 weeks I spent about 4-5 hours per day. I started off by finishing all Manhattan Prep books, doing end-of-chapter questions, suggested Official Guide questions and making my own notes for retention.
Initially I finished about 60% of Official Guide questions. Then I did 3 Manhattan Prep CATs. Scored 580 (Q41, V 30), 640 (Q47, V 31) and 660 (Q 43, V 37). Used the diagnostics to work further on my weak areas, re-read the relevant sections from Manhattan Guides and practice quizzes from Gmat club tests. I then attempted 2 free GMAT prep tests and scored 710 in each. Test 1 (Q 47, V 42); Test 2 (Q 49, V 39).
I then finished the entire GMAT Official Guide Questions and Official Guide Verbal Supplement. Finished GMAT Prep Question Pack 1 for Problem Solving, Sentence Correction, Critical Reasoning and Reading Comprehension. Finished around 75% of Data Sufficiency.
Subsequently I did around 11 GMAT club tests, scoring an odd 31 and the remaining were spread out in 40s with an average of around 44 and highest of 48. Just did the Quant. Also did all DS sets of Bunuel excluding the set which contains around 50 or so DS questions.
For the last 2 weeks, I finished 4 Gmat prep tests (Pack 1 and Pack 2). Scored 670 (Q 47, V 35), 730 (Q 50, V 39), 680 (Q 47, V 36) and 660 (Q 48, V 34). I did GMAT prep on every alternate day. Also focused on GMAT Prep Question Pack 1.
I did maintain an error log. However, it was mainly just the Level 1 of analysis, i.e. noting down the questions I got wrong. Didn't dig deep into Level 2 by classifying error by sections or types.
Test Day
I started with Verbal followed by Quant. Verbal started ok. However, towards the last 20-30 mins I realized I was behind scheduled so had to speed up. The mix at that stage was CR/RC so that unsettled me a bit. Had to guess on 2 questions to make up for time. I didn't feel too comfortable with the RC and CR in the exam. I felt they were of higher difficulty. Even for the ideas stated in the passage, I was struggling to find the relevant text in the passage. In my mocks, I was getting about 11/12 out of 14 right for RC passages. For Official Guide questions also, I had accuracy range of 80% or so. However, I knew I was struggling with RC in the exam. CR I struggled even in mocks with an accuracy of 50% - 60%.
For Quant, I was comfortable with the timing. Towards the middle I had to pace myself by skipping one question to catch up. Overall there were 3-4 questions where I was't sure about the approach.
I scored 660 (Q 48, V 34). This is the exact same break-up as my last GMAT prep, which coincidentally was my lowest mock score as well for my Gmatprep exams. However, in my last GMAT prep mock, I had messed up on my SC, a section I had been performing constantly well on. Also messed up on CR. In the real exam, I messed up on RC and CR. Quant score was in line with my mocks. My last Manhattan Prep CAT was also 660 with a different sub-section breakdown. I had taken it a while back.
Strategy for Re-take
I attempt to sit again end September. However, I am thinking of perhaps spending on a one-on-one course to further drill down on my weak areas and improve. I am targeting 730 plus as that is the average of the MBA programs I am planning to apply for. There are 2 options which come to my mind, one is the Manhattan Prep Advanced Course for 650 + candidates and the other being one-on-one online tutoring. I am leaning towards the latter as you can reach 650 with a different combination of strengths and weaknesses so I would prefer a customized approach.
For Quant, I did not review the error logs. I just reviewed the mistakes for Official guide quant and the GMAT prep mock exams. I plan to review all the mistakes from Official Guide quant. Also finish GMAT Quant Guide which I did not touch. I feel I can boost my Quant score to at least 50 if I follow these guidelines. In addition to these I plan to go through Manhattan Prep Advance Quant guide to be comfortable with the thinking process for 700+ questions. I have just ordered a copy.
For Verbal, I clearly need to work on my CR as I have been consistently underperforming. However, for SC and RC I do not know as I have exhausted all official guide materials. Will do the new ones for 2019 Official guides.
Given the work commitments, I am planning to do 1-2 hours on weekdays and 3-4 hours on weekends.
Would you think one-on-one course would be useful or should I continue with the self-study approach? Also how can I approach CR differently? Should I re-read the CR guide? And Is a 70 point improvement possible in 1.5 months? I am rationalizing it based on a 2-point improvement in Quant and 4-5 point improvement in Verbal.
ESR Summary
I have summarized my ESR below
Verbal
CR 49 percentile (1.42 min/question)
RC 57 percentile (2.11 min/question)
SC 81 percentile (1.24 min/question)
Overall 1.45 min/question
% correct (1st quarter 75% ; 2nd quarter 57%; 3rd quarter 86%; 4th quarter: 50%). Average response time was 2.10 for 3rd quarter and 1.19 for 4th quarter).
Quant
PS 58 percentile (1.51 min/question)
DS 70 percentile (1.48 min/question)
% correct (1st quarter: 100%; 2nd quart: 43%; 3rd quarter: 29%; 4th quarter: 100%)