I would try a library, as many times they have work stations that can be used. Also a great part about this is that libararies do have some distractions, just like you will have on test day.
Also, if you sign up for a Kaplan
online or in person course they offer the "test day experience" where you can actually take the test at the same pearson vue center where you will take the real GMAT. I used this, and it was awesome! (obviously this choice costs money).
No matter where you take your test, I would try to do a couple things to mimic the real test:
1. Take your practice tests at the same time and day (if possible) with same length breaks + AWA as on the real test
2. Use earplugs, b/c it helps block out distractions (it's too easy to have a silent room at home, but this WON'T happen at the test center. There will be a certain amount of disctractions and noises... especially others typing away on their computer
3. Talking about typing, make sure to practice AWA on a real keyboard, not a laptop keyboard. You'd be surprised how much different it feels to type on a full sized regular keyboard as opposed to a laptop keyboard.
4. Try to take your test on a 22" monitor. I noticed that my laptop screen was much smaller and I sometimes actually had a hard time seeing the questions (especially when the "pi" sign was used). I would try to practice on a regulard desktop computer with regular screen size.
other than that, read my article in my signature about the 10 tips to improve your score with no extra studying. This goes over some other ways that you can improve your score by improving your intangibles. GOOD LUCK!
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