Both the verbal reasoning and quantitative reasoning have two sections with 20 questions per section.
The difficulty level in the second section depends on your performance in the first section.
In the analytical writing section of the computerised test, each of the two essays is reviewed by an experienced reader and receives a score on a six point scale.
The essay also receives another computerised score from a program developed by ETS – the‘e-rater’.
Each reader will evaluate your writing independently, and no reader will be informed of any other reader's score.
GRE readers are college or university faculty members; most are either English or Communications professors.
For instance, if your score was reported to be in the 80 percentile, it would mean that you scored better than 80 percent of the test takers around the world.
These ranks are based on the GRE scores of those who tested earlier within a three year period.
For those testing in 2016-17, the percentile ranks are calculated on the performance of those who were tested between July 1, 2012 and July 30, 2015.
Source: ETS The GRE test can be either computer-based or paper-based.