HI MarcoMining,
I’m glad you reached out, and I’m happy to help. So, the first thing that I’m noticing about your situation is that you are pretty far from your 650+ score goal but continue to take practice tests. Thus, it’s clear that you are taking practice tests before you are ready.
GMAT practice tests best serve two main purposes. The first purpose is to provide diagnostic information. In other words, by taking a practice test, you can get a sense of what types of GMAT questions you’re comfortable answering and arrive at a reasonable estimation of how you would score on the GMAT at that point in time. The second purpose is, naturally, to provide a way to practice taking the GMAT and handling its various challenges, such as time pressure and the varying difficulty of the questions presented.
People often misuse practice tests as primary learning tools. You may have seen posts that go something like the following: A person with a score goal of 740 has been preparing for six weeks, has already taken all six of the official practice tests, and is wondering why her scores have been 600, 590, 570, 610, 600, and 560. In such a case, the person likely has been using practice tests as primary learning tools, meaning that taking practice tests has been much of, or possibly most of, what she has been doing to drive up her score.
Can practice tests be valuable tools for learning and continued score improvement? Yes, of course, if they are used properly and at optimal times in your preparation. However, practice tests should not be used as primary learning vehicles, because practice tests don’t really provide the kind of practice that you need to increase your score. To improve your score, you need to learn the basics of answering various types of GMAT questions, and then practice applying what you have learned by carefully answering practice questions in order to learn to answer them correctly. When you first learn how to answer a particular type of question, answering that type of question correctly can easily take way longer than the two minutes or so per question that you are allotted when taking the GMAT (or a practice test). Two minutes per question can fly by, and if you want to finish the sections of the test on time, in many cases, regardless of whether you have figured out how to answer a question, you may have to just answer and move on. So, while taking a practice test can be a great way to work on your overall approach to taking the GMAT, taking a practice test is not a great way to practice getting right answers to various types of questions. To effectively prepare for the GMAT, you have to practice answering questions of each type without the time constraints of the test and work up to a point at which you can answer questions of each type in around two minutes. When you take multiple practice tests early in your prep, the tests simply underscore exactly what you already know: you need to learn more content and develop more skills to hit your score goal. Why spend three hours taking a practice test just to learn what you already know, wasting a valuable learning tool in the process?
Of course, you can benefit from taking one diagnostic practice test early in your preparation. Furthermore, once you’ve done substantial preparation and mastered much of the content tested on the GMAT, when you sit for practice tests, they will actually show, to some degree, lingering weak areas that require further study. I say “to some degree” because although practice tests provide a pretty good approximation of how a person would score on the GMAT at a particular point in time, because the sample size of questions on any practice test is rather small (31 quant questions and 36 verbal questions), practice tests don’t do a very good job of pinpointing specific areas of weakness. For example, let’s assume that of the 31 quant questions on a given practice test, you encounter one Rate-Time-Distance question and get it wrong. Should you conclude that you need extensive work on Rate-Time-Distance questions? Of course not. Similarly, what if you correctly answered the Rate-Time-Distance question? Are you good to go on those questions? Maybe. But maybe not. In fact, let’s assume that you took six practice tests, saw a total of six Rate-Time-Distance questions, and correctly answered them all. Can you conclude that you’re solid on Rate-Time-Distance questions? Probably not. One thing that makes the GMAT challenging is the vast potential for variation in the questions. There are hundreds -- maybe thousands -- of variations of Rate-Time-Distance questions that can appear on the test. So, correctly answering five or six (or ten) Rate-Time-Distance questions doesn’t really tell you much. You must take care not to over-infer based on practice tests alone.
To truly improve your GMAT quant and verbal skills, and before taking any further tests, you will want to follow a linear study plan that allows you to slowly build mastery of one GMAT topic prior to moving on to the next. Within each topic, begin with the foundations and progress toward more advanced concepts.
If you’d like more detailed advice on how to improve your quant and verbal skills, feel free to reach back out, and I’ll be happy to help. You also may find it helpful to read this article about
how to score a 700+ on the GMAT.
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