CHAPTER 8.1

 ADMISSION FACTOR HOW LAW SCHOOLS CAN MAXIMIZE THE LSAT AND UGPAPERFORMANCE OF THEIR APPLICANTS OR MATRICULANTSNo individual scores need be increased. LSATScore Use the applicants highest LSAT Score UGPA Use the UGPA determined by LSAC Other Admission Factors Ignore The Admission Index  M Decreasing the value of   M   will, in general, decrease the average value UGPA and increase the average the value of  LSAT. Increasing the value of M will, in general,Increase the average value UGPA and decrease the     average the value of LSAT.

A PROPERTY, WITH EXAMPLES,

A PROPERTY OF  M.  When comparing two law schools, the law school with the smaller value of  M  favors the LSAT more than the law school with the larger value of  M  and the law school with the larger value of  M  favors the UGPA more than the law school with the smaller value of  M.
MOTIVATION
. Now
INDEX = LSATScore  +  M*UGPA.
With  M  very small (e.g. M=0), we see that the value of INDEX depends entirely on LSATScore whereas with  M  very large (e.g. M=1000), we see that the value of INDEX depends almost entirely on UGPA.
.

EXAMPLE 1. In our first example, we consider three applicants each of whom is applying to U Pittsburgh (uses M=10), U Oklahoma (uses M=15), and North Carolina Central University (uses M=20). We shall see that U Pittsburgh ranks Applicant 3 first and North Carolina Central University ranks Applicant 1 first, whereas U Oklahoma ranked the three applicants equal. We use
INDEX = LSATScore  + M*UGPA
with  M=10,  M=15,  and  M=20,  to find the relevant admission index

 APPLICANT LSAT UGPA ADMISSIONINDEX WITH   M=10U PITTSBURGH ADMISSIONINDEXWITH   M=15U OKLAHOMA ADMISSIONINDEXWITH    M=20 NCCU Applicant 1 157 3.80 157+10*3.80=157+38=195 157+15*3.8=214 157+20*3.8=233 Applicant 2 160 3.60 160+10*3.60=160+36=196 160+15*3.6=214 160+20*3.6=232 Applicant 3 163 3.40 163+10*3.40=163+34=197 163+15*3.4=214 163+20*3.4=231

 At U Pittsburgh, the relatively low value of  M  (M=10) benefits Applicant 3 (highest LSAT).  At NCCU, the relatively high value of  M  (M=20) benefits Applicant 1 (highest UGPA). Can we say that the value of  M=20  favors  UGPA? No. We can say, for example, that  M=20  favors UGPA more than  M=10 does.

EXAMPLE 2. In our second example, we consider three applicants each of whom is applying to three law schools with  M=29, M=30, and M=31 respectively.

 APPLICANT LSAT UGPA ADMISSIONINDEXWITH   M=29 ADMISSION INDEXWITH   M=30 ADMISSIONINDEXFOR  M=31 Applicant 4 120 4.00 120+29*4.00=236 120+30*4.00=240 120+31*4.00=244 Applicant 5 150 3.00 150+29*3.00=237 150+30*3.00=240 150+31*3.00=243 Applicant 6 180 2.00 180+29*2.00=238 180+30*2.00=240 180+31*2.00=242

 The relatively low value of  M  (M=29 benefits Applicant 6 (highest LSAT).  The relatively high value of  M  (M=31) benefits Applicant 6 (highest UGPA).

A SECOND PROPERTY OF  THE

the difference of the LSAT scores by the difference of the two UGPAs, where the two difference are  taken to positive.

Increasing the LSAT score by  M  and decreasing the UGPA by 1.00 grade point (e.g. from 3.85 to 2.85) will not change the admission index.

Decreasing the LSAT score by  M  and increasing the UGPA by 1.00 will not change admission index.

Some consequences of the preceding result are:

Increasing the LSAT score by 1/M  and decreasing the UGPA by 1/M grade poin) will not change the admission index.

Increasing the LSAT score by one-fourth  M  and decreasing the UGPA by 0.25 grade point (e.g. from 3.85 to 3.60) will not change the admission index.

 LSAT UGPA ADMISSION INDEXAT A LAW SCHOOLWITH M=10 153 3.80 153+10*3.80=153+38=191 155 3.60 1.55+10*3.60=155+36=191 157 3.40 157+10*3.40=157+34=191 159 3.20 159+10*3.20=159+32=191 161 3.00 161+10*3.00=161+30=191 163 2.80 163+10*2.80=163+28=191
 EXAMPLE. In this example, we are given that  M=10. Two tenth of  M   is 2 and two-tenth of 1.00 UGPA is 0.20.For M=10, increasing your LSAT score by 2 does as much good as increasing your UGPA by 0.20. Ipso facto, For M=10, increasisng your LSAT score by 1 does as much good as increasing your UGPA by 0.10.

 LSAT UGPA ADMISSION INDEXAT A LAW SCHOOLWITH    M=12 150 4.00 150+12*4.00=150+48=198 153 3.75 153+12*3.75=153+45=198 156 3.50 156+12*3.50=156+42=198 159 3.25 159+12*3.25=159+39=198 162 3.00 162+12*3.00=162+36=198
 EXAMPLE. In this example, we are given that  M=12. Three-twelfth of  M  is 3 and three-twelfth (one fourth) of 1.00 UGPA is 0.25. Ipso facto, For M=12, increasisng your LSAT score by 1 does as much good as increasing your UGPA by0.25.  Ipso facto, For M=12, increasisng your LSAT score by 1 does as much good as increasing your UGPA by  0.083310.

 LSAT UGPA ADMISSION INDEXAT A LAW SCHOOLWITH    M=12 150 4.00 150+12*4.00=150+48=198 153 3.75 153+12*3.75=153+45=198 156 3.50 156+12*3.50=156+42=198 159 3.25 159+12*3.25=159+39=198 162 3.00 162+12*3.00=162+36=198
 EXAMPLE. In this example, we are given that  M=12  so one-fourth  M  is  3. Notice that increasing the LSAT score by one-fourth  M  and decreasing the UGPA by  0.25, which is one fourth of 1.00 grade point does not change the admission index.

 A THIRD PROPERTY, WITH EXAMPLES, OF  THE ADMISSION INDEX

 Given two applicants, where one has a higher LSAT score and the other has a higher UGPA, there exists a unique positive number  M  which will assign the two applicants the same admission index. Calculating this positive number  M  involves three steps: taking the diference of the LSAT scores of the two applicant, taking the dfference of the UGPAs of the two applicant, and then dividing the difference of the LSAT scores by the difference of the two UGPAs, where the two difference are  taken to positive.

 COMMENT ON THE ADMISSIONINDEX AS GIVEN BY LSAC SITE'S COMMENT. Consider the index used by LSAC and the way it is written:                            Index = [(A) x (LSAT)] + [(B) x (GPA)] + C.Since convention dictates that we should multiply and divide before we add and subtract, we may delete the square brachets giving us                         Index = (A) x (LSAT) + (B) x (GPA) + C.The parentheses around  "A"  and the parentheses around  "B"  are certainly not  needed. Are parentheses needed around "LSAT" and "GPA"? I would say that deleting these parentheses will cause no confusion. Deleting these unnecessary parentheses gives us the parentheses-free expressionn             INDEX = A x LSAT + B x GPA +C. In Section One, affer letting  M=B/A, our choice is  A= 1,  B=M,  and  C=0  giving us              INDEX = LSAT + M x GPA.

 HOW TO INCREASE THEADMISSION INDEX BY 1 If you are applying to a law school that uses           INDEX = LSATScore  + M*UGPA, by definition increasing the admission index by 1 means increasing the value of INDEX by 1. To do this one can increase their LSAT score by 1 or increase  the value of  M*UGPA  by 1. To do this, one must increase UGPA by  1/M.

 S ThINDX is used by over 80 percent of the law  schools but nine of the top ninteen law schools (Yale, Hafvard, U Chicago, New York U, :U Pennsylvania, U Michigan, U Vairginia, Georgetown U, and U Texas) do not use INDX.

Title