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Welcome to part 2 of the process for analyzing your GRE practice tests. As we discussed in the first part of this series, we’re basing the discussion on the metrics that are given in Manhattan Prep tests, but you can extrapolate to other tests that give you similar performance data.

Last time, we discussed how to assess the data provided in the “question list”—the list that shows the questions you received and how you performed on each one. This week, we’re going to interpret the analysis given in the Assessment Reports. Read more

You can attend the first session of any of our online or in-person GRE courses absolutely free. Crazy, right? Check out our upcoming courses here.

The purpose of taking practice tests is two-fold:

(1) You’re testing yourself to see whether you’ve learned what you have been trying to learn.

(2) You’re diagnosing your strengths and weaknesses so that you can build a study plan going forward. Read more

I’m a terrible photographer because I don’t zoom in a reasonable manner. I try to zoom in on things that really can’t be appreciated without context. I try to zoom out and capture a whole panorama when the scene is too busy for any viewer to appreciate it. I suppose I could practice, but instead I’ve just stopped taking pictures and let other people do it for me.

But when it comes to the quantitative section of the GRE, I know exactly how to zoom, and I try to make sure my students know how to do the same. If you took all your photos with the camera on its factory setting, they would all be okay, but none of them would be really great. You want to get closer and more into the minutiae sometimes, and take a broader view other times, skipping all the details. The same is true when studying for (and taking) the GRE.

Zooming Out

Consider the following problem:

If x is the median of all the even multiples of 7 from 15 to 100, and y is the mean of all the even multiples of 7 from 16 to 104, what is the value of x –  y?

With your mental math camera on the regular setting, your approach might sound something like, “Okay, I know how to find the median. I’ll list out all the terms, and choose the middle one. After I’ve done that, I can find the mean by average out the first and last terms, because this is an evenly spaced set. Once I find both those numbers, I’ll subtract to find the difference.”

This approach is okay, and it will get you to the right answer. But zooming out a little allows you to look at the problem collectively, as a whole, and think something like, “Hey, both these sets of numbers are the same, since they both start at 21 and end at 98. And in an evenly spaced set, the mean and median are the same. So their difference is zero.”

Zooming out lets you pick up patterns in the exam and take advantage of the fact that you’ve studied them and notice them. It allows you to notice trends in the exam, which helps you know quickly what issues to consider and can also help you make an educated guess. Let’s take a look at another sample problem.

What is the average (arithmetic mean) of all the multiples of ten from 10 to 290 inclusive?

1. 140
2. 145
3. 150
4. 190
5. 200

On a regular setting, I’m looking at this and thinking, “Great, I know how to find the mean. I’ll list all the multiples of ten, add them up, and divide by the number of terms.” By zooming out, I can realize, “Hey, I know the GRE doesn’t want me to do that. This test rewards me for reasoning; is there a faster way? Yeah, this is an evenly spaced set of terms, so the middle one is the mean. And I can find that by just taking the mean of 10 and 290.

Making a Plan

The purpose of zooming out (or zooming in, as we’ll see in a second) is to make a plan. Each question should cause you to clarify what information you’re being given (“What are they telling me?”) and what you’re being asked to find from it (“What are they asking me?). Then, make a plan. Read more

Did you know that you can attend the first session of any of our online or in-person GRE courses absolutely free? We’re not kidding! Check out our upcoming courses here.

Let’s talk about the Do’s and Don’ts to get the most out of your practice tests.

Know WHY You Take Practice Tests

Practice tests are very useful for three things:

(1) Figuring out your current scoring level (assuming you took the test under official conditions)

(2) Practicing stamina and/or timing

(3) Analyzing your strengths and weaknesses

The third one on the list is the MOST important—that’s how we actually get better at this test!

Practice tests do not help us to improve while taking the test. If you have been training to run a marathon, you don’t learn how to get better while you’re running the marathon itself; you’re just trying to survive. ? Rather, you learn how to improve in between races while doing all kinds of training activities and analyzing your performance. Read more

Can I use POWERPREP on a Mac?  This is one of the questions most frequently asked by students calling us here at Manhattan Prep.

Well, I’m happy to say that my answer to this question is now a resounding, YES!  The long awaited introduction of ETS POWERPREP software for Mac users is here!  As of July 2013, ETS offers a Mac-compatible version of their terrific practice test software.  Mac-loving students will no longer have to worry about borrowing their roommate’s cousin’s boyfriend’s PC to take their practice GRE.

For those of you who aren’t familiar with the software, POWERPREP is free practice exam available directly from ETS, the administrators of the GRE.  POWERPREP is an excellent resource, one that we recommend all of our students use.  The software includes two computer-based tests, sample Analytical Writing topics, scored sample essays and reader commentary, test-taking strategies, a math review, and test tutorials. We recommend that students save at least one POWERPEP II test until fairly close to their real exam to get a nearly exact practice run of what will happen on test day.

So, rejoice, Mac-users, POWERPREP for Mac is now available.

Okay, the title shouldn’t describe them as activities that teachers hate, so much as activities that this teacher hates. I don’t hate them because they’re completely useless, but I hate them because they distract well-meaning and hard-working students. Studying for the GRE is time-consuming and hard enough without inefficient strategies.

There are certain study strategies that exasperated students have in common. When a student tells me that they’re following one of these strategies, the rest of the story is usually, and my score isn’t going up at all. Here are, in my opinion, the four big ones, and their better alternatives.

Binging on problems

This is a big one. Stories that start with, I did all the problems in the book or I bought an extra set of problems and did every single one usually end with but I’m not getting any better!

It’s not that doing all the problems in the book is a bad thing, but chances are if you’re doing that many problems, you aren’t giving them the time they deserve. Doing problems is a good way to assess what you know, but it’s actually not a great way to get better at doing problems. That comes when you review what you’ve done.

Wonder if you’re doing too many problems with not enough review? Go back and do 10 problems you did last week, timed. Do you remember how to tackle them? If so, you’re probably reviewing enough. If not, you might want to tackled fewer problems in more depth in order to see a better payout.
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Each week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.

For all values, [x] denotes the least integer greater than or equal to x.  If -2.5 < x < 1.5, what is the least possible value of [2x] + [x²]?

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Are you feeling incredibly stressed out when you sit down to study for the GRE? (Or maybe I should ask, who isn’t?) Do you find it hard to concentrate on the task at hand?

Researchers at the University of California at Santa Barbara recently published the results of a study following 48 undergrads preparing for the GRE. Jan Hoffman details the research in a blog post over at The New York Times; here’s a summary:

The Motivation

We had already found that mind-wandering underlies performance on a variety of tests, including working memory capacity and intelligence, said Michael D. Mrazek, (quoted from the NYT blog post)

Ah, yes, mind-wandering. We’ve all had this experience. We’re taking a test, the clock is ticking, and we keep finding ourselves thinking about something other than the question we’re supposed to be answering right now. Maybe we’re stressing about our score. Maybe we’re thinking about applications. Maybe we’re even distracted by work, significant others, family, or other issues that have nothing to do with the test!

How do we stop fixating on other things and concentrate on the task at hand? This study tried to find out.

The Study

First, the students were given one verbal reasoning section from the GRE. They also completed a task that measured their working memory. These tests are the baseline results.

The students were split into two groups; let’s call them Group M and Group N.

Group M attended meditation classes four times a week; these students learned lessons on mindfulness, which focuses on breathing techniques and helps to minimize distracting thoughts.

Group N attended nutrition classes, designed to teach these students healthy eating habits.

Afterwards, the students were given another GRE verbal section and another task to measure working memory. The performance of students in group N stayed the same; the nutritional studies didn’t make a difference.

Group M students, however, improved their GRE scores by an average of 12 percentile points! Here’s the best part: the study took just two weeks. You read that correctly: these students improved their verbal scores by 12 percentile points in just two weeks.

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I just read a really fascinating post on the New York Times’ Well blog. We’ve known for a long time that exercise has a whole host of good benefits, including benefits associated with memory. Two recent studies have delved even deeper into how this works.

How does exercise help memory?

In the blog post, New York Times journalist Gretchen Reynolds details the two new studies¾one conducted on humans and the other conducted on rats.

In the human study, elderly women who already had some mild cognitive impairment were split into three groups. One group lifted weights, the second group engaged in moderate aerobic exercise, and the third group did yoga-like activities.

The participants were tested at the beginning and end of the 6-month exercise period and the results were striking. First, bear in mind that, in general, we would expect elderly people who are already experiencing mental decline to continue down that path over time. Indeed, after 6 months, the yoga group (our control group) showed a mild decline in several aspects of verbal memory.

The weight-training and aerobic groups, by contrast, actually improved their performance on several tests (remember, this was 6 months later!). In particular, these groups were not losing as much of their older memories and they even became faster at some spatial memory tests involving memorizing the location of three items. In other words, the women were both better at making new memories and better at remembering / retrieving old ones!

Read more

Set the GRE prep work aside for a moment to catch up on some of this week’s top grad school tips and news links:

How to Make the Final Grad School Enrollment Decision (U.S. News Education)

Former dean of admissions has some advice for how to focus your needs and desires when you make your final grad school enrollment decision.

Overcome Procrastination with the Pomodoro Technique (About.com Graduate School)

Looking for a way to overcome procrastination? The Pomodoro Technique is a formal timer-based time management technique”it’s simple and effective.

How to Choose a U.S. Graduate School (U.S. News Education)

Use these four tips to thoroughly research graduate programs and prospective career fields before becoming and international graduate student.

U.S. Graduate Schools Stung by Drop in Chinese Applications (Reuters)

Reuters reports that slowing grad school enrollments, including a 5 percent decline in applications from Chine for fall 2013, are hurting the revenues of many U.S. universities.

Did we miss your favorite article from the week? Let us know what you’ve been reading in the comments or tweet @ManhattanPrep