You probably started your business school application process like so many others do: by Googling “best business schools” and looking at the GPA and GMAT scores those schools list for their admitted applicants. There is no question that you should go to the best business school you can possibly get into, but what should you do if you are concerned that your GPA might be holding you back from going to a really good one?

You are hopefully spending a lot of time preparing for the GMAT by mastering the content tested and working to understand each type of question that you’ll see on both the Quantitative and the Verbal section. But at the end of the day, no matter how prepared you are on a content level, you’ll need to know how to handle the timing on the test.

As anyone who’s taken the GMAT can attest, the questions are hard mainly because there isn’t enough time to solve them properly. So what can you do to help yourself beat the clock?

One of the most common GMAT prep products is the diagnostic test. It’s advertised on the cover of almost every prep book and touted as one of the premiere elements of any high-end prep class. But there are some reasons to be skeptical about the benefit of these diagnostic tests.

If you’re reading this, you probably have a GMAT this week. That’s great! This is the day that you’ve been working towards for a while, running through problem sets and taking practice tests. Nervous? Everyone is! It’s a big test.