I tell my students they CANNOT take a practice test within 3 days of the real thing - and I strongly suggest that they take their final practice test exactly a week before the real test (same time of day and everything).
This test is like a mental marathon - and you don't run a practice marathon right before the real thing or you'll just tire yourself out.
In addition, the whole point of taking a practice test is figuring out what you want to do the same way next time vs. what you want to do differently next time. You actually need a few days (at least!!) to analyze a test, figure out what those things are, and implement any changes you want to make.
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Stacey Koprince
GMAT Instructor
Director of Online Community
Manhattan GMAT
Contributor to Beat The GMAT!
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