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Monday, April 24, 2006

Reverse Engineering the U.S. News Law School Rankings

SethchandlerSeth J. Chandler (Houston) has reverse engineered the U.S. News law school rankings in Analyzing US News & World Report Rankings Using Symbolic Regression.

Seth has developed a four-factor model that predicts the U.S. News law school rankings with an R-Squared statistic of 97.7%.  The four factors are:

  • Peer reputation rating (Peer)
  • Employed at nine months after graduation (Employed9)
  • Student-faculty ratio (SFRatio)
  • 75th percentile UGPA (UGPA75)

The formula is:  8.3124  + 0.04139Peer(1.1487Employed9-SFRatio)UGPA75

Example:  Connecticut has a Peer rating of 2.9, an Employed9 rating of 96.4, a SFRatio of 11.8, and a UGPA75 of 3.63. The model predicts a score of 51, which is Connecticut's actual U.S. News score.

Seth also has developed a seven-factor model that predicts the U.S. News law school rankings with an R-Squared statistic of over 99%.

In our article, Ranking Law Schools:  Using SSRN to Measure Scholarly Performance, 81 Ind. L.J. 83, 87 n.9 (2006), we discuss the claim by Tom Bell (Chapman) that he has reverse engineered the U.S. News rankings:

http://taxprof.typepad.com/taxprof_blog/2006/04/deconstructing_.html

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