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Correlation between PGRE and Rank

Posted: Sat Oct 23, 2010 2:49 am
by HappyQuark
Disclaimer: The following plot uses values pulled from PhysicsGRE.com's Application Results/Stats page which is grossly incomplete. Furthermore, the analysis method I used was selected for for its ease of execution at the expense of quality. I got sick of writing SOP's so I decided to take a break and occupy an hour of my time parsing profiles to see what correlations I found. As such, all information contained below should regarded strictly as a combination of nonsense, hogwash and bunkum.

The following plot displays the best (i.e. lowest value) ranked university which a person was accepted to (i.e. offered acceptance but not necessarily chose to attend) versus their score on the Physics GRE. For example, if a person scored an 880 on the exam and was accepted at Harvard, Cornell, Columbia and UCLA, that person was assigned a score of 1 for their rank to reflect that a rank 1 school was the best option they were given with the score they got.

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Re: Correlation between PGRE and Rank

Posted: Sat Oct 23, 2010 8:56 pm
by grae313
Kinda seems like top 20 schools are looking for you to get at least 700 to 750 and then it's the rest of the application that makes the difference. 950+ appears to be the exception and looks to pull some weight.
Pretty cool graphic, thanks for doing this.

Re: Correlation between PGRE and Rank

Posted: Sun Oct 24, 2010 12:31 am
by ryan6
finally! haha, i have been waiting for someone to do this. Thank you. I realize you spent free time doing this, but what might be even more interesting would be separate scatter plots for domestic and foreign applicants. These two pools do not seem to be consistent when it comes to pgre and acceptance.

Re: Correlation between PGRE and Rank

Posted: Sun Oct 24, 2010 4:25 am
by HappyQuark
ryan6 wrote:finally! haha, i have been waiting for someone to do this. Thank you. I realize you spent free time doing this, but what might be even more interesting would be separate scatter plots for domestic and foreign applicants. These two pools do not seem to be consistent when it comes to pgre and acceptance.


Here is a plot with all of the international students removed (i.e. Domestic only).

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Re: Correlation between PGRE and Rank

Posted: Sun Oct 24, 2010 7:33 am
by satyad18
HappyQuark wrote:
ryan6 wrote:finally! haha, i have been waiting for someone to do this. Thank you. I realize you spent free time doing this, but what might be even more interesting would be separate scatter plots for domestic and foreign applicants. These two pools do not seem to be consistent when it comes to pgre and acceptance.


Here is a plot with all of the international students removed (i.e. Domestic only).

Image

Would be very happy if you came up with a plot of all international students. Thanks.

Re: Correlation between PGRE and Rank

Posted: Sun Oct 24, 2010 3:18 pm
by HappyQuark
Image

Re: Correlation between PGRE and Rank

Posted: Sun Oct 24, 2010 4:43 pm
by HappyQuark
And just for the hell of it, here is a 3D Plot of data for domestic students with the Major GPA factored in


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Re: Correlation between PGRE and Rank

Posted: Sun Oct 24, 2010 10:14 pm
by satyad18
HappyQuark wrote:Image

Thank you. :)

Re: Correlation between PGRE and Rank

Posted: Tue Oct 26, 2010 12:17 am
by vesperlynd
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Re: Correlation between PGRE and Rank

Posted: Tue Oct 26, 2010 12:43 am
by HappyQuark
vesperlynd wrote:HappyQuark,

Are these plots for physics departments only, or do they also include engineering and astronomy? Great job by the way!


The data includes astronomy programs but not engineering programs.

Re: Correlation between PGRE and Rank

Posted: Tue Oct 26, 2010 12:46 am
by CarlBrannen
It seems that the domestic students go to the best university their PGREs can get them into, while the international applicants end up in schools lower rated than what a domestic applicant would have chosen.

Re: Correlation between PGRE and Rank

Posted: Tue Oct 26, 2010 10:34 am
by vesperlynd
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Re: Correlation between PGRE and Rank

Posted: Tue Oct 26, 2010 11:09 am
by HappyQuark
vesperlynd wrote:
HappyQuark wrote:
vesperlynd wrote:HappyQuark,

Are these plots for physics departments only, or do they also include engineering and astronomy? Great job by the way!


The data includes astronomy programs but not engineering programs.


Can you please make a plot for domestic applicants, physics departments only?


I wish. Unfortunately the astro and physics data in the results table are mixed in and in all likelihood this would require me to go through everyones profile individually and make sure they were applying strictly to physics departments. I might get around to that at some point but right now the GRE and applications have taken priority.

Re: Correlation between PGRE and Rank

Posted: Tue Oct 26, 2010 2:11 pm
by WhoaNonstop
Now I understand why HappyQuark wants to go into HEP Theory... He loves plotting stuff.

-Riley

Re: Correlation between PGRE and Rank

Posted: Tue Oct 26, 2010 2:35 pm
by HappyQuark
WhoaNonstop wrote:Now I understand why HappyQuark wants to go into HEP Theory... He loves plotting stuff.

-Riley


Ok I admit it, I'm addicted to plots. When the last M. Night Shyamalan movie came out, I noticed a trend in his ratings and couldn't help but plot it.

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Re: Correlation between PGRE and Rank

Posted: Wed Oct 27, 2010 2:52 pm
by Skullgrid
I'm really liking this thread.

Re: Correlation between PGRE and Rank

Posted: Tue Nov 23, 2010 12:18 am
by geshi
HappyQuark wrote:
WhoaNonstop wrote:Now I understand why HappyQuark wants to go into HEP Theory... He loves plotting stuff.

-Riley


Ok I admit it, I'm addicted to plots. When the last M. Night Shyamalan movie came out, I noticed a trend in his ratings and couldn't help but plot it.

Image


Woah woah woah, hang on a minute. You changed your forum avatar!

Oh right, the plot. Some how this trend does not amaze me. Nice plotting :).