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The statistical methodology adopted for the ranking gives each business school a unique score (known to statisticians as a z-score).
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More recent data is weighed more heavily. (This was a recent change.) If you had picture A, B, and C up for one year, and then took them down in favor of pictures X, Y, and Z, then within just a couple weeks your score would be determined mostly by X, Y, and Z.
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It shows the highest coefficient, the highest odds ratio, the highest z-score and one of the lowest standard errors.
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