Hi caga,
The good news is that you’ve been able to score as high as a Q45 and V41 on an official GMAT, so things are not horrible, right? That said, since you are still 30+ points from your score goal, it’s clear that you have some remaining quant and verbal weaknesses that are holding you back from hitting your goal. Thus, I’m happy to provide some advice on how to improve your Critical Reasoning and quant skills. Let’s start with quant.
Say you are learning about Number Properties, for example. First, you should develop as much conceptual knowledge about Number Properties as possible. In other words, your goal will be to completely understand properties of factorials, perfect squares, quadratic patterns, LCM, GCF, units digit patterns, divisibility, and remainders, to name a few concepts. After carefully reviewing the conceptual underpinnings of how to answer Number Properties questions, practice by answering 50 or more questions just from Number Properties. When you do dozens of questions of the same type one after the other, you learn just what it takes to get questions of that type correct consistently. If you aren't getting close to 90 percent of questions of a certain type correct, go back and seek to better understand how that type of question works, and then do more questions of that type until you get to around at least 90 percent accuracy in your training. If you get 100 percent of some sets correct, even better. Number Properties is just one example; follow this process for all quant topics.
When you are working on learning to answer questions of a particular type, start off taking your time, and then seek to speed up as you get more comfortable answering questions of that type. As you do such practice, do a thorough analysis of each question that you don't get right. If you got a remainder question wrong, ask yourself why. Did you make a careless mistake? Did you not properly apply the remainder formula? Was there a concept you did not understand in the question? By carefully analyzing your mistakes, you will be able to efficiently fix your weaknesses and in turn improve your GMAT quant skills.
Each time you strengthen your understanding of a topic and your skill in answering questions of a particular type, you increase your odds of hitting your score goal. You know that there are types of questions that you are happy to see and types that you would rather not see, and types of questions that you take a long time to answer correctly. Learn to more effectively answer the types of questions that you would rather not see, and make them into your favorite types. Learn to correctly answer in two minutes or less questions that you currently take five minutes to answer. By finding, say, a dozen weaker quant areas and turning them into strong areas, you will make great progress toward hitting your quant score goal. If a dozen areas turn out not to be enough, strengthen some more areas.
So, work on accuracy and generally finding correct answers, work on specific weaker areas one by one to make them strong areas, and when you take a practice GMAT or the real thing, take all the time per question available to do your absolute best to get right answers consistently. The GMAT is essentially a game of seeing how many right answers you can get in the time allotted. Approach the test with that conception in mind, and focus intently on the question in front of you with one goal in mind: getting a CORRECT answer.
To improve in Critical Reasoning, you first need to master the individual Critical Reasoning topics: Strengthen the Argument, Weaken the Argument, Resolve the Paradox, etc. As you learn about each question type, do focused practice so you can track your skill in answering each type. If, for example, you get a weakening question wrong, ask yourself why. Did you make a careless mistake? Did you not recognize the specific question type? Were you doing too much analysis in your head? Did you skip over a keyword in an answer choice? You must thoroughly analyze your mistakes and seek to turn weaknesses into strengths by focusing on the question types you dread seeing and the questions you take a long time to answer correctly.
A major mistake that people make when training for CR is that they do practice questions too fast. To get Critical Reasoning questions correct, you have to see exactly what is going on in the passages and answer choices, and you likely won't learn to do so by spending a few minutes on each question. At this stage of your training, you may need to spend as many as fifteen minutes on each question, learning to see what there is to see. Here is a way to look at this process: If you get a new job in a field in which you are not experienced, you may not be as fast as the other people working with you, but you know you have a job to do and you make sure you learn all the angles, so that you do the job well, if not as quickly as those around you. Rushing through the job and doing it incorrectly would not make sense. Then, as you gain more experience, you learn to do the same job more quickly. Think of Critical Reasoning questions similarly. Your job is to do what? To get through questions quickly? Not really. Your job is to get correct answers.
So, first you have to learn to get correct answers, generally at least 10 to 15 in a row consistently, and more in a row would be better. That is your job, and if it takes you 15 minutes per question to get correct answers consistently, then so be it. Only after you have learned to get correct answers consistently can you work on speeding up. Working quickly but not doing your job is useless. Better to work slowly and learn to do your job well. You can be sure that with experience, you will learn to speed up, and then you still will be doing your job well, i.e., getting correct answers consistently.
Finally, a key aspect of getting correct answers to Critical Reasoning questions is noticing the key differences between trap choices and correct answers. Trap choices can sound temptingly correct but don't get the job done. The logic of what a trap choice says simply doesn't fit what the question is asking you to find. So, to get better at your job, learn to see the key differences between trap choices and correct answers.
You may find it helpful to read the following articles about
developing the proper mindset for GMAT success and
how to increase your GMAT quant score.
Feel free to reach out with further questions. Good luck!
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