EFT 2018 - Detailed stats

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EFT 2018 - Detailed stats

Post by ryanrosenberg » Mon Oct 01, 2018 12:17 am

Here are links to detailed stats spreadsheets for EFT. If you see any errors, please let me know via email or PM.

Online
Maryland
Michigan
Minnesota
WUSTL
Yale
UCF
Georgia Tech
Carleton
Boise State
Oxford
Edinburgh
Stanford
Virginia Tech

Combined all buzzes
Combined tossup summary
Combined bonuses

Tossup graphs

Overall and category BPA
Team BPA plots

Subcategory PPBs

Please use this thread for comments and questions about the stats, or for additional statistical analysis using this data.
Last edited by ryanrosenberg on Tue Nov 13, 2018 10:36 pm, edited 12 times in total.
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Re: EFT 2018 - Detailed stats

Post by Mnemosyne » Tue Oct 02, 2018 8:53 pm

You might want to make sure all the spreadsheets are view-only. I think I changed (and unchanged) something while trying to ctrl + f.
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Sun Oct 07, 2018 5:38 pm

I've updated the combined files above with data from this past weekend's mirrors (Minnesota and WUSTL).
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Tue Oct 09, 2018 12:51 pm

I've also added a link to a folder with graphs like the one below for each tossup.

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Re: EFT 2018 - Detailed stats

Post by a bird » Wed Oct 10, 2018 5:07 pm

Geriatric trauma wrote:
Tue Oct 09, 2018 12:51 pm
I've also added a link to a folder with graphs like the one below for each tossup.
Thanks for making these! They seem like a really useful tool for seeing which questions generated lots of negs, which were powered very often, etc. Hopefully this will help writers and editors better anticipate how questions will play in future.

It might also be interesting to seem similar plots aggregated by subcategory to see how difficulty changed from category to category. (I'm not sayin this needs to happen, but it might be good for someone looking for a data visualization project.)
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Thu Oct 11, 2018 3:18 pm

a bird wrote:
Wed Oct 10, 2018 5:07 pm
It might also be interesting to seem similar plots aggregated by subcategory to see how difficulty changed from category to category. (I'm not sayin this needs to happen, but it might be good for someone looking for a data visualization project.)
World History, European History, Short Fiction, and Current Events were the easiest categories over the course of a tossup (mostly in the second half), and Biology and Music were the hardest (Music mostly in the first half of the tossup, Bio in the late-middle clues).

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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Fri Oct 12, 2018 5:52 pm

I made graphs of how many correct buzzes a team got (as a percentage of possible buzzes) at each point in the tossup. Here's a graph highlighting the top 4 teams by average tossup conversion at each site using these graphs. You can see, for instance, the gap between the top 6 teams (highlighted ones plus Delaware and Virginia A) and the rest of the field at Maryland, or the gap between Ohio State A and Michigan State A and everyone else.

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Re: EFT 2018 - Detailed stats

Post by AGoodMan » Sun Oct 14, 2018 6:31 pm

I played the entirety of the set (save for one bye round) at the Yale site yesterday, and I had a lot of fun. I'm looking forward to taking a peek at the detailed stats for our site when they become available.
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Sun Oct 14, 2018 9:28 pm

AGoodMan wrote:
Sun Oct 14, 2018 6:31 pm
I played the entirety of the set (save for one bye round) at the Yale site yesterday, and I had a lot of fun. I'm looking forward to taking a peek at the detailed stats for our site when they become available.
I've updated the OP with links to this past weekend's site-specific stats. The combined files are also now updated.
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Re: EFT 2018 - Detailed stats

Post by The Billiards Fool » Sun Oct 14, 2018 11:46 pm

Geriatric trauma wrote:
Sun Oct 14, 2018 9:28 pm
AGoodMan wrote:
Sun Oct 14, 2018 6:31 pm
I played the entirety of the set (save for one bye round) at the Yale site yesterday, and I had a lot of fun. I'm looking forward to taking a peek at the detailed stats for our site when they become available.
I've updated the OP with links to this past weekend's site-specific stats. The combined files are also now updated.
No rush at all but just wondering if the TU graphs are getting updated as well.
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Mon Oct 15, 2018 1:00 am

The Billiards Fool wrote:
Sun Oct 14, 2018 11:46 pm
Geriatric trauma wrote:
Sun Oct 14, 2018 9:28 pm
AGoodMan wrote:
Sun Oct 14, 2018 6:31 pm
I played the entirety of the set (save for one bye round) at the Yale site yesterday, and I had a lot of fun. I'm looking forward to taking a peek at the detailed stats for our site when they become available.
I've updated the OP with links to this past weekend's site-specific stats. The combined files are also now updated.
No rush at all but just wondering if the TU graphs are getting updated as well.
Yep, they should be updated now.
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Thu Oct 18, 2018 12:37 pm

I've calculated BPA and category BPA for EFT, you can find the stats here.
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Thu Oct 18, 2018 1:57 pm

I've also created team BPA plots like the one below, and uploaded them here.

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Re: EFT 2018 - Detailed stats

Post by t-bar » Thu Oct 18, 2018 2:14 pm

The Midwest, it seems, is the land of generalists. Here are the top 6 players across all sites ranked by their third-best category BPA:

1. Jakob Myers (Michigan State): History 38.979, Other 29.000, Literature 23.896
2. Matthew Lehmann (Chicago): History 24.932, Literature 23.091, Thought 21.955
3. Chris Ray (Ohio State): History 32.312, Other 22.417, Thought 21.583
4. Alston Boyd (Chicago): Thought 29.000, Beliefs 22.045, Literature 19.500
5. Eric Wolfsberg (Delaware): Thought 28.636, History 19.182, Other 19.182
6. Kai Smith (Chicago): Fine Arts 33.256, Science 24.096, Literature 19.154
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Re: EFT 2018 - Detailed stats

Post by Fuddle Duddle » Thu Oct 18, 2018 3:19 pm

I made a list of teams and people who BPA indicates are very good at various categories (players with single category BPA above 25, teams with single category BPA above 30) (apologies for the formatting; this is copy-pasted from Excel).

Brad McLain (Illinois A) Illinois A 32.955 Beliefs
Kai Smith (Chicago Orange) Chicago Orange 33.256 Fine Arts
Jakob (Michigan State A) Michigan State A 38.979 History
Chris R (Ohio State A) Ohio State A 32.312 History
Geoffrey Chen (Dragonball Z) Dragonball Z 37.75 Science
Kevin Wang (Amherst A) Amherst A 28.023 Science
Brad McLain (Illinois A) Illinois A 30.682 Thought
Alston Boyd (Chicago Purple) Chicago Purple 29 Thought
Eric Wolfsberg (Delaware) Delaware 28.636 Thought
Caleb Kendrick (Maryland A) Maryland A 27.269 Thought
Jakob (Michigan State A) Michigan State A 29 Other
Brice Fincher (UGA B) UGA B 27.545 Other

Illinois A 32.955 Beliefs
Harvard A 30.545 Beliefs
UGA B 30.182 Beliefs
Chicago Orange 34.179 Fine Arts
Ohio State A 33.417 Fine Arts
Harvard A 31.818 Fine Arts
Michigan State A 44.312 History
Penn A 34.083 History
Ohio State A 33.479 History
Chicago Purple 33.205 History
Illinois A 39.295 Literature
Ohio State A 39.208 Literature
Michigan State A 33.958 Literature
UF Guanaco (A) 33.125 Literature
UGA A 30.205 Literature
Michigan State A 33.167 Other
Hopkins A 32 Other
Toronto J 31.182 Other
Dragonball Z 39.278 Science
Amherst A 32.409 Science
Ohio State A 47.208 Thought
Illinois A 35.5 Thought
Maryland A 35.346 Thought
UF Guanaco (A) 34.65 Thought
Chicago Purple 33.045 Thought
Michigan State A 30.958 Thought
Maryland B 30.864 Thought
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Re: EFT 2018 - Detailed stats

Post by a bird » Thu Oct 18, 2018 5:32 pm

An Economic Ignoramus wrote:
Thu Oct 18, 2018 3:19 pm
I made a list of teams and people who BPA indicates are very good at various categories (players with single category BPA above 25, teams with single category BPA above 30) (apologies for the formatting; this is copy-pasted from Excel).

Brad McLain (Illinois A) Illinois A 32.955 Beliefs
Kai Smith (Chicago Orange) Chicago Orange 33.256 Fine Arts
Jakob (Michigan State A) Michigan State A 38.979 History
Chris R (Ohio State A) Ohio State A 32.312 History
Geoffrey Chen (Dragonball Z) Dragonball Z 37.75 Science
Kevin Wang (Amherst A) Amherst A 28.023 Science
Brad McLain (Illinois A) Illinois A 30.682 Thought
Alston Boyd (Chicago Purple) Chicago Purple 29 Thought
Eric Wolfsberg (Delaware) Delaware 28.636 Thought
Caleb Kendrick (Maryland A) Maryland A 27.269 Thought
Jakob (Michigan State A) Michigan State A 29 Other
Brice Fincher (UGA B) UGA B 27.545 Other

Illinois A 32.955 Beliefs
Harvard A 30.545 Beliefs
UGA B 30.182 Beliefs
Chicago Orange 34.179 Fine Arts
Ohio State A 33.417 Fine Arts
Harvard A 31.818 Fine Arts
Michigan State A 44.312 History
Penn A 34.083 History
Ohio State A 33.479 History
Chicago Purple 33.205 History
Illinois A 39.295 Literature
Ohio State A 39.208 Literature
Michigan State A 33.958 Literature
UF Guanaco (A) 33.125 Literature
UGA A 30.205 Literature
Michigan State A 33.167 Other
Hopkins A 32 Other
Toronto J 31.182 Other
Dragonball Z 39.278 Science
Amherst A 32.409 Science
Ohio State A 47.208 Thought
Illinois A 35.5 Thought
Maryland A 35.346 Thought
UF Guanaco (A) 34.65 Thought
Chicago Purple 33.045 Thought
Michigan State A 30.958 Thought
Maryland B 30.864 Thought
I don't want to be overly negative, since BPA is an innovative way to use advanced stats data, but I want to point out the shortcomings of lists like this. Ryan did a good job explainings the shortcomings of BPA in this thread, but I want to emphasize that category dependence is also a limitation of the stat in its current form.

Not only does BPA share the field dependence and opponent dependence of ppg, but the category specific BPA's depend on the relative difficulty of each category. Ryan's average buzzpoint plots upthread show that how difficulty changed significantly between categories (at least relative to the collective field). Because of this category dependence, it doesn't necessarily mean anything to compare Brad McLain's belief BPA to Kai Smith's on art. Comparing players within a category is more meaningful, especiialy if they played the same field (though there could still subcategory dependence issues).
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Re: EFT 2018 - Detailed stats

Post by Fuddle Duddle » Fri Oct 19, 2018 12:10 am

Sorry if this got confused; I wasn't trying to imply that you can make meaningful cross- category comparisons with this; using a single threshold across all categories was a somewhat arbitrary decision.
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Re: EFT 2018 - Detailed stats

Post by The Abydos Helicopter » Sat Oct 20, 2018 7:13 pm

Could I get a link to the Oxford site stats?
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Sun Oct 21, 2018 8:10 pm

The Abydos Helicopter wrote:
Sat Oct 20, 2018 7:13 pm
Could I get a link to the Oxford site stats?
Oxford and Edinburgh have been added. If someone knows what the Briticizing process was for these sites and can let me know, I'd appreciate it; I'm going to hold off on including that version in combined stats until that's squared away.
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Fri Oct 26, 2018 11:54 am

Geriatric trauma wrote:
Sun Oct 21, 2018 8:10 pm
The Abydos Helicopter wrote:
Sat Oct 20, 2018 7:13 pm
Could I get a link to the Oxford site stats?
Oxford and Edinburgh have been added. If someone knows what the Briticizing process was for these sites and can let me know, I'd appreciate it; I'm going to hold off on including that version in combined stats until that's squared away.
The combined stats have been updated with British sites (less the questions that were changed in Briticizing), let me know if anything seems missing.
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Re: EFT 2018 - Detailed stats

Post by The Abydos Helicopter » Fri Oct 26, 2018 1:11 pm

Geriatric trauma wrote:
Fri Oct 26, 2018 11:54 am
Geriatric trauma wrote:
Sun Oct 21, 2018 8:10 pm
The Abydos Helicopter wrote:
Sat Oct 20, 2018 7:13 pm
Could I get a link to the Oxford site stats?
Oxford and Edinburgh have been added. If someone knows what the Briticizing process was for these sites and can let me know, I'd appreciate it; I'm going to hold off on including that version in combined stats until that's squared away.
The combined stats have been updated with British sites (less the questions that were changed in Briticizing), let me know if anything seems missing.
Thank you!

Some of the links appear to have gotten mixed up - Tossup graphs leads to team bpa plots now, and Team BPA plots to team buzz graphs with only one file in?
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Fri Oct 26, 2018 1:26 pm

The Abydos Helicopter wrote:
Fri Oct 26, 2018 1:11 pm
Geriatric trauma wrote:
Fri Oct 26, 2018 11:54 am
Geriatric trauma wrote:
Sun Oct 21, 2018 8:10 pm
The Abydos Helicopter wrote:
Sat Oct 20, 2018 7:13 pm
Could I get a link to the Oxford site stats?
Oxford and Edinburgh have been added. If someone knows what the Briticizing process was for these sites and can let me know, I'd appreciate it; I'm going to hold off on including that version in combined stats until that's squared away.
The combined stats have been updated with British sites (less the questions that were changed in Briticizing), let me know if anything seems missing.
Thank you!

Some of the links appear to have gotten mixed up - Tossup graphs leads to team bpa plots now, and Team BPA plots to team buzz graphs with only one file in?
Should be fixed now.
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Mon Nov 12, 2018 10:37 pm

Links to Stanford and VT sites have been added in; combined stats will take a day or two on my end.
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Re: EFT 2018 - Detailed stats

Post by ryanrosenberg » Tue Nov 13, 2018 10:39 pm

Geriatric trauma wrote:
Mon Nov 12, 2018 10:37 pm
Links to Stanford and VT sites have been added in; combined stats will take a day or two on my end.
These should be updated; let me know if anything looks off.
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Re: EFT 2018 - Detailed stats

Post by hftf » Sun Jan 06, 2019 11:30 pm

Static visualizations are now available.

Because EFT isn’t clear, access is restricted (username: alberto, password: nepomuceno). You must obtain access via this private forum.

Please continue using this private forum for all discussion of EFT. Note that there are likely many mistakes in the data (esp. at UK sites).


If you find this tool valuable and would like to support me creating more quizbowl technology, please consider donating to my Patreon.
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