## Articles by David Ragsdale

• ### Misplaced Modifiers and How They Work

by on July 9th, 2011

Misplaced modifiers are tested frequently on the GMAT, so anyone preparing for the test should spend some time studying this error. Let’s start at the beginning. What is a modifier? To modify means to describe … Read More

• ### The Secret to Finding Things on the GMAT

by on June 26th, 2011

The GMAT requires you to find many things. You have to find flaws in answers, you have to find signals in math questions that tell you what they’re testing, you have to find common patterns in arguments, you have to … Read More

• ### Overcoming the Sunk Cost Fallacy in Pacing

by on June 12th, 2011

Pacing yourself properly is one of the keys to success at the GMAT, and there are many elements in the pacing equation. For example, the speed at which you work, the time you allot per question, and the degree to which … Read More

• ### Non-Obvious Ways to Improve Your Applications

by on May 31st, 2011

Business schools look at thousands of applications every year. With so many people competing for the limited number of spaces available, you need to make sure that your applications are as strong as they can be. Some of … Read More

• ### 5 Things High-Scoring Essays Have in Common

by on May 22nd, 2011

The two essays for the Analytical Writing Assessment are graded holistically. This means, simply, that your grade is based on the overall impression the essay makes on the reader. GMAT essay graders don’t assign one … Read More

• ### The Magic of Complementary Probability

by on May 14th, 2011

Suppose that there is a 30% probability of rain tonight. What, then, is the probability that it doesn’t rain? There’s no trick question here, so if 70% seems like the obvious answer, you’re correct. Either it will … Read More

• ### Working with Perfect Tenses

by on May 6th, 2011

Verb tense is one of the more complex issues of English grammar, and usage experts can speak at length on the subtleties of the subject. Luckily, the GMAT doesn’t plumb too deeply into the nuances of tenses, but there … Read More

• ### Weakening Arguments – Real Life vs. the GMAT

by on April 28th, 2011

Weakening an argument is a standard job on the GMAT. Since we encounter arguments every day — in newspaper columns, in advertisements, on television, and even in conversations with our co-workers about where to have … Read More

• ### Data Sufficiency Strategies: Pieces of the Puzzle

by on April 12th, 2011

Even though Data Sufficiency questions test the same math content as Problem Solving, most GMAT students find that they can’t use the same strategies on both question types. One of the common errors students make in … Read More

• ### Simple and Compound Interest

by on March 26th, 2011

The GMAT will occasionally test your facility with calculating interest. Savings accounts, checking accounts, money-market accounts, investment accounts — these are all examples of accounts that can earn interest and … Read More

• ### Simultaneous Equations in Data Sufficiency

by on March 10th, 2011

Let’s say that 2x + 8y = 14. What is the value of x? The answer: there’s no way to tell. For any value of x that you choose, there is a value of y that will make the equation true. The equation has an infinite number … Read More

• ### How Can I Speed Up My Pacing on the GMAT?

by on March 2nd, 2011

You can’t teach the GMAT very long without getting certain questions. One that you can count on hearing as regularly as the tide comes in is some version of, “Do you have any advice on how I can work faster? I need … Read More

• ### What Does the GMAT Mean by the Word “Inference”?

by on February 22nd, 2011

Suppose you were taking a GMAT class with me. One day you’re sitting in the room waiting for class to begin. Torrential rain is pouring down outside. I enter the classroom and I’m soaked from head to foot. What would … Read More

• ### Count Nouns and Mass Nouns — Choosing the Right Modifier

by on February 13th, 2011

Have you every wondered whether you should say, “There were less cars on the road today than usual,” or “There were fewer cars on the road today than usual”? How about whether you should say, “The amount of … Read More