In the first part of this series, we talked about how to analyze your strengths and weaknesses and in which categories of “low hanging fruit” to concentrate your studies.
We left off talking about timing; let’s talk about how to make better decisions as you take the test. Read more
Most second-round deadlines are in early January, so around now, a lot of people are asking me how to eke out the last 30 to 80 points they need to reach their goal.
Let’s talk about what to do to try to lift your score that last bit in the final 2 months of your study.
Is this article for me?
A student of mine once emailed me after he took the GMAT. Instead of telling me his score, he wrote, “let’s just say that 4 times my score is a multiple of 88, and 5 times my score is a multiple of 35.”
Can you tell what he got? If not…you may need to work on your GMAT translation skills! Read more
If you’re going to do a great job on the GMAT, then you’ve got to know how to Test Cases. This strategy will help you on countless quant problems.
This technique is especially useful for Data Sufficiency problems, but you can also use it on some Problem Solving problems, like the GMATPrep® problem below. Give yourself about 2 minutes. Go!
* “For which of the following functions f is f(x) = f(1 – x) for all x?
|(A)||f(x) = 1 – x|
|(B)||f(x) = 1 – x2|
|(C)||f(x) = x2 – (1 – x)2|
|(D)||f(x) = x2(1 – x)2|
|(E)||f(x) = x / (1 – x)”|
Testing Cases is mostly what it sounds like: you will test various possible scenarios in order to narrow down the answer choices until you get to the one right answer. What’s the common characteristic that signals you can use this technique on problem solving?
The most common language will be something like “Which of the following must be true?” (or “could be true”).
The above problem doesn’t have that language, but it does have a variation: you need to find the answer choice for which the given equation is true “for all x,” which is the equivalent of asking for which answer choice the given equation is always, or must be, true.
Lately, we’ve been talking about how to decide which test to take, as well as what to do if you decide to stick with the GMAT. What if you decide to switch from the GMAT to the GRE? That’s what we’ll tackle today! (Next time, we’ll talk about what to do if you want to switch from the GRE to the GMAT.)
How do I study?
The overall way that you want to study doesn’t actually change that much; rather, you’ll just need to change what you are studying, as discussed later in this article.
First, you’ll need to determine whether the way that you’ve already been studying is actually the optimal way. If not, then you’ll need to make some changes, regardless of whether you stick with the GMAT or switch to the GRE.
The GMAT and the GRE are both executive reasoning tests; that is, the test makers want to know how you think and make decisions. You of course need to know content (certain facts, rules, formulas) in order to do well on either test, but that level of study is not enough; you also need to lift yourself to a second level of understanding that allows you to think your way through these sometimes bizarrely-worded problems as effectively and efficiently as possible.
Follow the two links I put in the last paragraph. Take some time to just think about the concepts presented there. Has this been your approach to studying so far? If so, great. Keep thinking and working in that way.
If not, however, recognize that you’re going to need to start studying with this new mindset, regardless of whether you take the GMAT or the GRE.
What are my strengths and weaknesses?
Any time you’re developing or revising a study plan, you’ll want to put together a solid analysis of your strengths and weaknesses.
If you have been studying for the GMAT for a while, then you should have some practice CAT data. (If not, or if it has been more than 6 weeks since you last took a CAT, then you’ll need to take one to get the data. Make sure to take the test under official conditions, including the essay and IR sections, length of breaks, and so on.)
So you’ve taken the test and you aren’t entirely happy with your score. How do you decide whether to re-take the test?
It might be the case that your score is close to what you wanted, but not quite all the way there. Alternatively, you may be trying to decide whether to stick with the GMAT or switch to the GRE (and, if so, I recommend you follow that link I just inserted).
If you already know that you do want to stick with the GMAT, read on.
Should I re-take?
There are two main reasons someone might want to go for a higher score. The most common is that you think a better score will improve your chances of getting into business school or of obtaining certain internships once in school. Some people also feel that achieving a certain score is a personal goal and they want to meet that challenge.
If you’re trying to gauge whether a better score will make a big difference, start researching. What’s the average or median score for last year’s incoming class at your preferred schools? (Look at whatever data the school publishes—different schools might publish data in different forms.) Are you in range? Are you strong? If you are already above the average or median at that school, then adding 30 points might not make as big a difference as, say, earning a promotion at work.
Check GPA statistics as well. You have a little leeway for your GMAT score to be lower if your GPA is higher than the average for admitted students; if your GPA is lower, however, then it would be better to have an above-average GMAT. (Also, all of this just means that you have a chance, not that you’ll definitely get in. These are only two of many parts to your application!)
Most business schools now accept both the GMAT and the GRE, so which one should you take? I’ve written on the topic before but it’s been nearly a year and I’ve got some updates.
The conventional wisdom has been that the math is easier on the GRE. Though many schools do accept the GRE, rumors abound that students who take this test are at a bit of a disadvantage because they are expected to do better on the (easier) quant section. Anecdotally, we have heard a few admissions officers admit that they do think about this (strictly off the record, of course). Most admissions officers, though, have said this doesn’t matter to them at all, including several officers at the top 10 schools.
So we’ve come up with a series of decisions to help you make this choice. The first three questions are “deal-breakers”—that is, a certain answer will point you definitively to a specific test (the GMAT, as it happens). The fourth question is…murkier. We’ll address that in a little bit.
#1: Do all of “your” schools accept the GRE?
This one is obvious. All business schools (that ask for a standardized test score) accept the GMAT. Most—but not all—accept the GRE. If you want to apply to any schools that require the GMAT, such as London Business School MBA (at the time of this publication), then you’ll be taking the GMAT.
#2: Do any of “your” schools prefer the GMAT?
Most schools that accept both tests don’t express a preference between the two. Some schools, though, do say that the prefer the test. They publish this preference right on their web site, so go look up all of your schools and see what they say about the GMAT / GRE requirement for admissions.
As of the date of this article, Columbia, Haas (Berkeley) and Anderson (UCLA) all state that they prefer the GMAT, even though they do accept the GRE. If you want to apply to one of these schools, I recommend that you take the GMAT. (Note: these aren’t the only three schools that prefer the GMAT; I just picked out the three most well-known ones that do. You still need to research your schools!)
#3: Do you want to go into banking or management consulting after b-school?
The major banks and consulting firms ask for GMAT scores when you apply. (Some of them even ask for undergraduate GPA and SAT scores. I think that data is irrelevant after someone has a b-school GPA and GMAT scores but I’m not the one making the hiring decisions!)
Welcome to our third and final installment dedicated to those pesky maximize / minimize quant problems. If you haven’t yet reviewed the earlier installments, start with part 1 and work your way back up to this post.
I’d originally intended to do just a two-part series, but I found another GMATPrep® problem (from the free tests) covering this topic, so here you go:
“A set of 15 different integers has a median of 25 and a range of 25. What is the greatest possible integer that could be in this set?
Here’s the general process for answering quant questions—a process designed to make sure that you understand what’s going on and come up with the best plan before you dive in and solve:
Fifteen integers…that’s a little annoying because I don’t literally want to draw 15 blanks for 15 numbers. How can I shortcut this while still making sure that I’m not missing anything or causing myself to make a careless mistake?
Hmm. I could just work backwards: start from the answers and see what works. In this case, I’d want to start with answer (E), 50, since the problem asks for the greatest possible integer.
We’re going to kill two birds with one stone in this week’s article.
Inference questions pop up on both Critical Reasoning (CR) and Reading Comprehension (RC), so you definitely want to master these. Good news: the kind of thinking the test-writers want is the same for both question types. Learn how to do Inference questions on one type and you’ll know what you need to do for the other!
That’s actually only one bird. Here’s the second: both CR and RC can give you science-based text, and that science-y text can get pretty confusing. How can you avoid getting sucked into the technical detail, yet still be able to answer the question asked? Read on.
Try this GMATPrep® CR problem out (it’s from the free practice tests) and then we’ll talk about it. Give yourself about 2 minutes (though it’s okay to stretch to 2.5 minutes on a CR as long as you are making progress.)
“Increases in the level of high-density lipoprotein (HDL) in the human bloodstream lower bloodstream cholesterol levels by increasing the body’s capacity to rid itself of excess cholesterol. Levels of HDL in the bloodstream of some individuals are significantly increased by a program of regular exercise and weight reduction.
“Which of the following can be correctly inferred from the statements above?
“(A) Individuals who are underweight do not run any risk of developing high levels of cholesterol in the bloodstream.
“(B) Individuals who do not exercise regularly have a high risk of developing high levels of cholesterol in the bloodstream late in life.
“(C) Exercise and weight reduction are the most effective methods of lowering bloodstream cholesterol levels in humans.
“(D) A program of regular exercise and weight reduction lowers cholesterol levels in the bloodstream of some individuals.
“(E) Only regular exercise is necessary to decrease cholesterol levels in the bloodstream of individuals of average weight.”
Got an answer? (If not, pick one anyway. Pretend it’s the real test and just make a guess.) Before we dive into the solution, let’s talk a little bit about what Inference questions are asking us to do.
Inference questions are sometimes also called Draw a Conclusion questions. I don’t like that title, though, because it can be misleading. Think about a typical CR argument: they usually include a conclusion that is…well…not a solid conclusion. There are holes in the argument, and then they ask you to Strengthen it or Weaken it or something like that.