The GMAT helps us assess your quantitative, verbal, and analytical aptitude when we may not have other academic coursework that can do the same. Perhaps you graduated college without ever taking a math class, or your undergraduate major did not require you to write many essays or analyze an argument in written English communication – the standardized test can fill in those gaps.
The GMAT can help to compensate for a weaker undergraduate GPA. Perhaps your grades were sub-par because you were working to pay for school and couldn’t put in as much studying time as you would have liked OR you were a college athlete OR you were just less motivated and mature than you are today (we have never heard anyone claim that one. Your test scores can help you if your grades are not the best reflection of your potential.
The GMAT is often used in evaluating merit-based funding opportunities. While we do take a holistic approach when making admission decisions, we look closely at undergraduate grades and test scores when making financial aid award decisions. Undergraduate institutions are not the same, offering varying levels of rigor, different degrees, etc. The GMAT is the only application requirement that is “standardized;” it has been tested for validity, reliability, and is accessible to all applicants.