What percentage of 170 scorers come from Ivy schools?

NoWorries
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What percentage of 170 scorers come from Ivy schools?

Postby NoWorries » Thu Aug 01, 2013 2:25 am

How about non-Ivy Ivy types?

Are these stats known?

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LSATSCORES2012
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Re: What percentage of 170 scorers come from Ivy schools?

Postby LSATSCORES2012 » Thu Aug 01, 2013 3:20 am

Assumptions:

Ivy League LSAT SD = Overall SD (probably not true)
Median=Mean
Change in applicants from 2010-11 cycle to 2011-12 cycle mirrors the change in 170+ applicants (probably about true)

Data, with links to sources:

SD: 10.26
# of Applicants & LSAT Means
Total applicants with LSAT > 170: 4052
Change in applicants from 2010-11 to 2011-2012 cycle: 155050 -> 129958

Based on these assumptions and the data above, one would expect that the Ivy League produces about 539 people who score more than 170 each year.

In the 2010-2011 cycle, there were 4052 170+ applicants, but this data is from the 2011-12 cycle, in which there was a substantial decrease in applicants. After adjusting based upon the decrease in applicants, we can say there were about 3396 170+ scorers in the 2011-2012 cycle.

So, if these assumptions hold true, about 16% of 170+ applicants come from Ivy League institutions. That means 84% come from non-Ivy's.

If the most unlikely assumption - that the Ivy League SD = the overall SD - proves false, which I expect it would, I don't think it would have a substantial effect on the results. If there is a difference, I'm almost sure the SD would be smaller (because there's less room to move around at the higher means), which would mean that there are less 170+ applicants than I have predicted.

So, if my math skills aren't as bad as I think they are...

TL;DR: We can somewhat safely conclude that at most 16% of 170+ applicants come from Ivy's.

Excel #'s for anyone who cares/wants to check my work:

Code: Select all

SD   10.26         
   Applicants   LSAT Mean   % above 170   apps above 170
brown   177   164   0.279342675   49.44365352
columbia   190   164   0.279342675   53.07510829
cornell   314   162   0.217775763   68.38158967
dartmouth   171   164   0.279342675   47.76759746
harvard   251   167   0.384991298   96.63281586
princeton   172   165   0.313012446   53.83814068
penn   324   163   0.247536899   80.20195513
yale   234   167   0.384991298   90.08796379
         TOTAL   539.4288244


Under the same assumptions, AT MOST 39% of 175+ applicants are from Ivy's.

abl
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Re: What percentage of 170 scorers come from Ivy schools?

Postby abl » Thu Aug 01, 2013 3:50 am

But the question is "Ivy or ivy-type schools" --- e.g., roughly the top 15 national universities and the top 5 liberal arts colleges.

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A. Nony Mouse
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Re: What percentage of 170 scorers come from Ivy schools?

Postby A. Nony Mouse » Thu Aug 01, 2013 8:45 am

In the grand scheme of higher ed, there are a lot more people graduating from non-ivies than from ivy/ivy-like schools. So isn't it more a question about whether ivy/ivy-like grads are overrepresented in the 170+ pool?




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