The GRE is a requirement for many graduate programs. There are some specific programs that may require you to take a subject GRE test, while a few disciplines also have an alternative, such as the GMAT. The general GRE tests analytical, reading and writing skills and your score can impact your chances for admission, but also for assistantships and scholarships. It’s typically delivered by computer, except for remote locations, and is adaptive, meaning your performance on sections impacts the level of difficulty you’ll receive.