In what way?
The new test will drop one essay and replace it with a new section called Integrated Reasoning. So you will have to study for this new section.
The Quant and Verbal sections are not changing at all. If you are not well-prepared for Integrated Reasoning, or if you find essay-writing easier than answering test questions, though, then you might find yourself more tired on the Q and V sections, since Integrated Reasoning comes first.
In terms of scores, IR is scored on a completely separate scale; the Q and V scores (and the overall 3-digit score) as you know them will not change. Nobody knows yet how the business schools will use the IR scores, but the general consensus is that it won't play a very important role in admissions for the first year. After that... well, ask me again in a year.
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