Articles by David Ragsdale
Misplaced Modifiers and How They Work
"I'm installed on most computers" sounds silly, right? Avoid this kind of mistake by mastering modifiers.
The Secret to Finding Things on the GMAT
David reveals the most important tool for finding errors, traps, patterns, and more.
Overcoming the Sunk Cost Fallacy in Pacing
Taking too long on any one GMAT question? Letting go and moving on can be your best strategy.
Non-Obvious Ways to Improve Your Applications
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 [...]
5 Things High-Scoring Essays Have in Common
What makes a good AWA? David Ragsdale breaks it down.
The Magic of Complementary Probability
Learn how using a flanking maneuver can save you time and hassle on seemingly hard probability problems.
Working with Perfect Tenses
Learn how "perfect" tenses are used on the GMAT on difficult SC questions.
Weakening Arguments – Real Life vs. the GMAT
Surprise! The GMAT is not the same as real life. Here's some differences in these Weaken the Argument questions.
Data Sufficiency Strategies: Pieces of the Puzzle
David explains the "Pieces of the Puzzle" approach for Data Sufficiency questions.
Simple and Compound Interest
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 [...]
Simultaneous Equations in Data Sufficiency
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 [...]
How Can I Speed Up My Pacing on the GMAT?
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 [...]
What Does the GMAT Mean by the Word “Inference”?
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 [...]
Count Nouns and Mass Nouns — Choosing the Right Modifier
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 [...]