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Some schools may also require you to take one or more GRE Subject Tests. The purpose of each GRE examination, of course, is to help graduate schools decide if you've got the right stuff for their program. If you're looking for help with the exam, check out Peterson's full-length GRE practice test.
The GRE general test does not test specific knowledge in any subject. It measures the ability to respond to questions in limited time.The Graduate Record Examination (GRE) is a multiple-choice exam designed to measure verbal, analytical, and quantitative skills.