The general GRE is computer-based only now. I know that, because I took the freaking thing last April.
If I were you, I would practice, practice, practice using computer-based sample exams and prep materials. I made the mistake of thinking that, since I was good at the subject matter of the exam and had been using a computer for lots of different things since I was a freshman, that I’d have no problem with the exam’s format. Ha.
On the computerized exam, you don’t get to leaf through the entire section and pick and choose the problems you solve first. You have to deal with whatever problem the computer picks for you before you can move on. This can lead to some pretty major anxiety–almost downright panic, in my case–if you rely on being able to dictate the order in which you handle problems on standardized exams.
And, even if you’ve sat at computers for hours and hours at a shot, using the machine for everything from games to desktop publishing to word processing to graphics and database work, what you’ve done is nothing like the exam. That’s because you haven’t been staring at the computer without a break for hours at a shot while dealing with the kind of performance anxiety that tests like this often induce. The first section I took was the verbal. I didn’t do excellently, but I did well enough. By the time I got done with that, I had a whopping headache. I did worse on the second section, and by the time I was I hit the third section, I felt like my head was being split open with an axe, and my eyes were more strained than the peaches that go into baby food. I couldn’t concentrate at all. I did miserably.
Thus, according to the ETS, I am in the 98th percentile in verbal ability, somewhere between the 35th and 50th percentile in mathematical ability, and in the 15th–15th!–percentile in analytical ability. Ouch. I may not be Einstein, but I doubt the ETS is right in believing that a sack of potatoes with a lisp could run rings around me, logic-wise. Luckily for me, I had good recommendations and some research experience, and I had already started working with my advisor on the project I’m doing now.
I’ll probably retake the GRE at some point this year. I’ll make sure to practice the right way this time, if only to reduce my nervousness during the exam. My boyfriend, who made it through his doctorate in a field very different from mine (Spanish and Portuguese), claims that your GRE scores can determine your priority for getting an assistantship once you’re admitted. He credits his high GRE scores for having gotten very good financial support through grad school.
The biology subject exam is paper-based and much less stressful. If you’ve had a good freshman survey sequence for bioscience majors, you should do OK. A little review probably wouldn’t hurt, though. I took the exam cold and did–well, not incredibly, but well enough to ameliorate the effects of my crappy general exam scores a bit.
Good luck on the exam!
–Scribble.