The most widely accepted test for graduate school admissions, the GRE is owned, published, and developed by Educational Testing Services, a non-profit organization. ETS claims that GRE scores, when combined with a student’s college grades, can determine that student’s readiness for graduate school better than grades alone. ETS revised the GRE in 2011 to make the computer interface more user-friendly and to design questions that better simulate the kind of critical thinking that graduate students are expected to do in their programs. The computer-based revised GRE is offered on a continuous basis at testing centers throughout the United States. A paper-based GRE is offered at select locations abroad.