He also recommends that students avoid the folly of only reviewing their incorrect answers to practice questions. "I would tell people to also review all of the correct answers, why your answer is correct, and why the other answers are incorrect," he says. "This may not help as much for the quantitative section, but it helps immensely for the verbal section."
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Corrected on 6/13/2012: An earlier version of this article misspelled the name of Rachael Waddell.