I have just taken a GRE test at a Prometric centre, and this centre administers GMAT test as well.
I just came to know when I take the test there is something called "Pretest section", and I never read about that before. It is just like a additional section e.g. quantitative section with the same amount of time and questions that would not be scored. The test-taker basically has to do twice, not knowing which one is the actual one.
It stated was that it applies to GMAT, GRE so can anyone confirm this?