However, from the 2006 academic year, Keio stopped using the English exam portion of the center test for its medical department, and the same test will be abolished for the other two departments from the next academic year, which will leave Keio free from any part of the National Center Test.This is the reason that a cram school teacher gave.
A member of a cram school staff said, "The National Center Test only reveals slight differences in abilities among examinees who apply for top-notch universities."If this is true, then my guess is that a similar phenomena occurs at the lower end of the scale, too. If a test taker marked the same answer for each question in the test, it is likely that the student would get somewhere around a 25%. (There a three questions with more than six possible answers in this year's test. The rest had four.) The closer a test taker comes to making a perfect score or a 25%, the less discriminative value it would have.
Keio Univ. to stop using standardized entrance exam : National : DAILY YOMIURI ONLINE (The Daily Yomiuri): "- Sent using Google Toolbar"