GRE, the Graduate Record Examination, is a standardized exam generally given in the United States. Given year-round, the GRE is computer-based and adaptive, meaning that depending on how well a tester does on the first few questions of a section determines the difficulty level of questions thereafter. While the GRE has subject tests in some sciences and math, the GRE General Test is the most used by colleges and universities as an entrance examination for prospective graduate students.
The three sections are: Verbal, Mathematical, and Analytical. The Verbal section has sentence completions, analogies, reading comprehension, and antonyms. Math has quantitative comparisons, problem solving, and graphs. The Analytical section contains analytical reasoning and logical reasoning. The exam lasts about 2 1/2 hours maximum after a 30 minute familiarization with the computer and its functions.