TLSHome Law SchoolAdmissions LawSchools LawStudents TLSForums
 Forum Archives Index     Forum Archives Search     Leave Archives and Visit Active TLS Forums

 All times are UTC - 5 hours [ DST ]

 Page 1 of 1 [ 9 posts ]
Author Message
 Post subject: 25% 75% meaningPosted: Tue Sep 18, 2007 3:33 pm

Joined: Wed Jul 18, 2007 11:39 am
Archived Posts: 109
Hm, so I know what median means but what does the 25% and 75% numbers mean. I'm going to guess the percentage of applicants in that class that come from that score range.

Top

 Post subject: Posted: Tue Sep 18, 2007 4:06 pm

Joined: Tue Jul 10, 2007 6:29 pm
Archived Posts: 76
say the 25-75 percentiles are 156 and 160, respectively,

That means, 25% of the students are admitted with below a 156, and 25% are admitted with above a 160. The other 50% fall in the 156-160 range.

Does that make sense?

Same is true for GPA.

Top

 Post subject: Posted: Tue Sep 18, 2007 4:08 pm

Joined: Mon Jun 04, 2007 2:50 pm
Archived Posts: 1223
inner-quartile range?

am I using that term correctly? So long since statistics.

Top

 Post subject: Posted: Tue Sep 18, 2007 4:09 pm

Joined: Tue Jul 10, 2007 6:29 pm
Archived Posts: 76
stats was one of my 2 c's, bad semester (both c's in the one semester).

Top

 Post subject: Posted: Wed Sep 19, 2007 1:59 pm

Joined: Wed Feb 14, 2007 2:24 am
Archived Posts: 1455
Quote:
say the 25-75 percentiles are 156 and 160, respectively,

That means, 25% of the students are admitted with below a 156, and 25% are admitted with above a 160. The other 50% fall in the 156-160 range.

Does that make sense?

Same is true for GPA.

To add some clarity:

If a school has a range of 156-160, it means 25% of last year's MATRICULATED CLASS had a score of less than 156, 50% had scores between 156 and 160, and 25% had scores over 160.

Top

 Post subject: Posted: Sat Sep 22, 2007 4:20 am

Joined: Mon Jan 08, 2007 7:48 am
Archived Posts: 1620
Just as the median doesn't mean the mathematical average (that would be the mean) but means if you line the people up lowest score to highest it is the person exactly in the middle. (or at the 50th percentile of their class)

If you keep that line of people from lowest score to highest and take the person one quarter from the bottom is the score used for the 25% (because that person is the 25th percentile of scores for their class) If you take the person one quarter from the top, their score is the 75% number (because they are in the 75th percentile of score for their class)

It basically tells you the group in the middle- the "average" students at the school in that category (lsat or gpa) It ignores the people much better than most others and the people that make you think "how'd they get in here?" and gives you a good idea of the general caliber of students/scores accepted.

Top

 Post subject: Re: 25% 75% meaningPosted: Tue Apr 15, 2008 2:28 pm

Joined: Mon Oct 22, 2007 12:53 pm
Archived Posts: 19
Sorry to revive a dead topic, but I was just discussing this with someone about how a school could hypothetically game their stats.

So if a LS had 100 attending students, and the 25-75 numbers were 160 - 165, the numbers could break either of these 2 ways or anywhere in between.

Class A
25 students: 120
50 students: 160-165
25 students: 166

Class B
25 students: 159
50 students: 160-165
25 students: 180

Assuming a constant 163 average for the middle groups, your means for the classes would be:

Class A: 153
Class B: 166

Obviously, the numbers would never break this way, but it's illustrative of just how much variance there can potentially be for different schools.

I imagine this is especially important for those on waitlists because one person filling an additional seat could very likely move a school's percentile on one end or the other.

If you added another 120 to class A in place of someone from the top 75 %, your 25-75 break would be 120 and 165. Another 180 instead, and it would be 160 and 180.

Bottom line: At the waitlist point in the app process, even more than before, numbers matter. I would imagine most schools will be calculating how any waitlist admit will shift their numbers.

Top

 Post subject: Re:Posted: Tue Apr 15, 2008 2:29 pm

Joined: Sun Aug 05, 2007 5:12 pm
Archived Posts: 7299
Mosel wrote:
inner-quartile range?

am I using that term correctly? So long since statistics.

Interquartile range. But, yeah.

Top

 Post subject: Re: 25% 75% meaningPosted: Tue Apr 15, 2008 2:43 pm

Joined: Mon Feb 25, 2008 3:37 pm
Archived Posts: 557
bobby428 wrote:
Bottom line: At the waitlist point in the app process, even more than before, numbers matter. I would imagine most schools will be calculating how any waitlist admit will shift their numbers.

Numbers, especially LSAT scores, could be fairly meaningless as well. If the 25% and 75% marks are buffered by a significant margin, a school may have no reason to even look at the LSAT scores and instead focus primarily on GPA.

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 9 posts ]

 All times are UTC - 5 hours [ DST ]

copyright 2003-2010 top-law-schools.com • all rights reserved • powered by phpBBContact TLS