While active duty in the military, I was selected for an education that required I attend graduate school. Upon this selection, I read through the program requirements, and started a short-list of schools I'd like to attend with their corresponding application requirements- this was the first time I'd heard of the GRE.
So I did what any good service member would do, plugged the GRE into Google, and signed up for the first available exam, which was one week away.
Long-story-somewhat-shorter, took the GRE w/ zero studying.
At the time of my GRE I had been out of my UNGRD for 4 years, and was not working in academia (obviously). I scored a 155V/152Q/3.5AWA
I didn't even know what those scores meant, but knew I could do better. While still in the parking lot at the testing facility, I signed up for another GRE... in 21 days.
Even though I was applying to a non-STEM program, I wanted to get my Q score up. Maybe because it was the lower of the two, or because it would be easier to improve, I'm not really sure... Nonetheless, I studied for 3 straight weeks nothing but the Math portions. Next test: 159V/154Q/3.5AWA
So, who the f knows, haha...
Good luck and best wishes, all!