When do GMAT “crash courses” actually work?

If you’re struggling with the GMAT, you’ve probably had the following fantasy: wouldn’t it be great if you could contact a GMAT tutor, study like crazy for two weeks, and then be finished with the whole mess?

Well, a few lucky souls have managed to do exactly that. Consider the following stories:

  • Lucky GMAT Student #1 scored a 640 on a GMATPrep test, attended five GMAT tutoring sessions in two weeks, and scored 720 on his actual test.
  • Lucky GMAT Student #2 had never taken the GMAT before, and she met with her tutor with dizzying frequency over a three-week period. Soon thereafter, she scored a 720 on her first attempt at the actual exam.
  • Lucky GMAT Student #3 was scoring in the low 600s on his practice tests. He then attended tutoring sessions on six consecutive days, and took the GMAT on the seventh day. His final score was a 710.

These GMAT “crash course” success stories sound awfully tantalizing, right? Trouble is, GMAT crash courses can only work under specific conditions. If you’re fortunate enough to be a fast learner, some of your GMAT weaknesses can be fixed really quickly. Other GMAT weaknesses? Not so much.

There are never any guarantees when it comes to short-term GMAT prep, but you might be able to succeed in a GMAT crash course if all of the following apply to you:

your underlying GMAT algebra and arithmetic skills are strong

There are plenty of things that a good GMAT tutor can teach you quickly. If, for example, you need help tackling basic overlapping sets problems, turning ratio questions into clean equations, or applying a systematic approach to percents questions, then a GMAT tutor can probably help you with those things quickly. But if you have a shaky grasp on algebra and arithmetic, you’ll need a lot more than two weeks to achieve your GMAT score goals.

The bad news is that it simply takes time to develop your algebra and arithmetic fundamentals. Think of it this way: you spent the first 10 or 12 years of your math education focused primarily on basic arithmetic and algebra skills; if you failed to develop those skills over the course of a decade, it’s unlikely that you’ll suddenly become an algebra master after two weeks of GMAT tutoring.

But if you’re generally sharp with basic equations and arithmetic, then you can worry about developing GMAT-specific skills such as trap avoidance or your ability to decipher some of the GMAT’s twisted word problems. And if you’re lucky, you might be able to develop those particular GMAT skills in just a couple of weeks.

your timing isn’t perfect

While it’s unrealistic to suggest that you can make a huge leap in your algebra fundamentals in a two-week crash course, it might be possible to quickly improve your time management on the GMAT exam, particularly on the quant section.

If you’re a regular reader of this blog, you probably already know that time management is arguably the single biggest determinant of your GMAT quant score. You can be pretty mediocre at math and get a composite GMAT score in the 700s (click here or here for examples). You can be somewhat terrible at math and score a 40 or above on the quant section (click here for another example). The key is to painstakingly avoid careless errors on easier questions, while having the guts to quickly guess on comparatively difficult questions.

So while a GMAT tutor might not be able to radically improve your fundamental math skills over the course of a few sessions, you might be able to improve your timing quickly. And depending on your exact situation, that could make an enormous difference in your final score.

your critical reasoning and reading comprehension skills are strong

Here’s the unglamorous truth about reading comprehension and critical reasoning: if your underlying reading skills are weak, it can take a long time to make a substantial score improvement. Can a GMAT test-prep tutor help you to improve at reading comprehension and critical reasoning? Sure. Can a GMAT tutor make you wildly better at CR and RC in just a few days or weeks? Probably not, unless there are some unusually easy-to-fix flaws in your approach.

At the heart of most critical reasoning and reading comprehension errors is a very simple issue: you probably misread or misinterpreted something in the passage, the question, or the answer choices. If you read with mind-numbing precision, you’ll probably do well on CR and RC; if you tend to miss details and nuances when you read, you’ll probably do poorly. You can memorize as many GMAT test-prep books as you want, but if you lack precision in your reading, your verbal score will remain lamentably low.

Are there ways that a tutor can help you improve your reading skills? Absolutely. Could a GMAT tutor help you to strengthen your logical skills, or your understanding of specific critical reasoning question types? Yes, definitely.

But these things take time. If your GMAT critical reasoning and reading comprehension mistakes are primarily the result of imprecise reading, then you’ll need more than a few days to make a substantial improvement. Just ask the legendary Ms. HP.

you have room for improvement on sentence correction

While it can be difficult to improve your critical reasoning and reading comprehension skills in a short timeframe, the opposite is often true on sentence correction. I would argue that sentence correction is the single most “improvable” part of the GMAT for many students. GMAT sentence correction questions emphasize a finite set of grammar and usage fundamentals; if you can learn to apply those fundamentals with 100% consistency, you’ll do at least reasonably well on sentence correction.

Sure, logic and meaning play a major role on GMAT sentence correction questions, and it can be difficult to improve your basic reasoning skills during a few hours of GMAT tutoring. But a good GMAT crash course can definitely help you to become better at quickly recognizing the GMAT’s favorite SC grammar and usage issues.  If sentence correction is your biggest hurdle, then there might be a chance that you can substantially improve your GMAT score in just a few weeks.

Let’s face it: no GMAT tutor can honestly guarantee results in two weeks, no matter how intelligent a prospective student may sound over the phone. A short GMAT crash course doesn’t really offer you an opportunity to improve your fundamental reading skills or your basic math skills, and for some students, those fundamentals are the primary culprit for disappointing GMAT scores. If this applies to you, then be patient, and prepare yourself for a long, steady assault on the GMAT.

But if you need help on sentence correction, some of the finer points of GMAT quantitative questions, or your GMAT time management skills, then you might have a shot at making a substantial score jump in a short period of time. There are never any guarantees, but you’ll at least have a puncher’s chance to break through your ceiling in a few days or weeks. Your odds of success might not be fantastic, but if you manage to achieve your score goal quickly, you’ll have far more time to battle the next beast: your MBA applications.

2 responses to “When do GMAT “crash courses” actually work?

  1. I was worried about, since a while I dind’t read one of your amazing article or insight.

    In the meantime, I read the previous to keep up with my motivation.


    Best Regards,


  2. Charles Bibilos

    Thanks, Carcass! I just moved into a new home, so the blog went dormant for a few weeks. More posts coming soon…

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