The Graduate Record Examinations (GRE) is a standardized test that is an admissions requirement for many graduate schools in the United States and Canada and few in other countries. The GRE is owned and administered by Educational Testing Service (ETS). The test was established in 1936 by the Carnegie Foundation for the Advancement of Teaching.

According to ETS, the GRE aims to measure verbal reasoning, quantitative reasoning, analytical writing, and critical thinking skills that have been acquired over a long period of learning. The content of the GRE consists of certain specific algebra, geometry, arithmetic, and vocabulary sections. The GRE General Test is offered as a computer-based exam administered at testing centers and institution owned or authorized by Prometric. In the graduate school admissions process, the level of emphasis that is placed upon GRE scores varies widely between schools and departments within schools. The importance of a GRE score can range from being a mere admission formality to an important selection factor.

The GRE was significantly overhauled in August 2011, resulting in an exam that is not adaptive on a question-by-question basis, but rather by section, so that the performance on the first verbal and math sections determines the difficulty of the second sections presented. Overall, the test retained the sections and many of the question types from its predecessor, but the scoring scale was changed to a 130 to 170 scale (from a 200 to 800 scale). An examinee can miss one or more questions on a multiple-choice section and still receive a perfect score of 170. Likewise, even if no question is answered correctly, 130 is the lowest possible score.

GRE Subject Tests 

In addition to the General Test, there are also three GRE Subject Tests testing knowledge in the specific areas of Mathematics, Physics, and Psychology. The length of each exam is 170 minutes.

In the past, subject tests were also offered in the areas of Computer Science, Economics, Revised Education, Engineering, English, Geology, History, Music, Political Science, Sociology, and Biochemistry, Cell and Molecular Biology. In April 1998, the Revised Education and Political Science exams were discontinued. In April 2000, the History and Sociology exams were discontinued; with Economics, Engineering, Music, and Geology being discontinued in April 2001. The Computer Science exam was discontinued after April 2013. Biochemistry, Cell and Molecular Biology was discontinued in December 2016. The GRE Biology Test and GRE Literature in English Test tests were discontinued in May 2021. The GRE Chemistry Test was discontinued in May 2023.