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User:Looie496/Analysis of FAC

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This study was motivated by my experiences at FAC both as a reviewer and as a nominator. My experiences gradually led me to believe that it would be very difficult for articles on topics with a large literature to pass -- mainly because of the way referencing is handled. This in turn caused me to wonder how frequently articles on important topics have succeeded at FAC. So I set out to do a bit of research. The findings show an interesting and significant pattern. Executive summary: From 2006 to 2008 articles on important topics were being promoted to FA status at a steady clip, averaging nearly one per week, but in 2009 the rate of promotion of important articles fell off a cliff, and through 2010 and 2011 the rate has been well below one article per month. The following table shows the data. Below I will explain how these numbers were calculated.

Important articles promoted to FA, by year
Year Number promoted Per month
2003 3 0.25
2004 21 1.75
2005 12 1.0
2006 36 3.0
2007 43 3.58
2008 33 2.75
2009 17 1.42
2010 5 0.42
2011 6 0.67

To obtain these figures, I first went through the list of featured articles at WP:FA, selecting the ones that seemed to me to be about topics of high importance. The selection was based on my own opinion, and other people might choose a few that I omitted and leave out a few that I chose: I don't believe the differences would affect the outcome. It is very important to emphasize that I selected articles without knowing the years in which they were promoted. Before starting this project I made a cursory scan of a few articles that caught my attention, and noticed that none had been promoted in the past two years; I then decided to treat the problem in a statistically valid way by blinding myself to the promotion dates until after the selection was made. The only way I know to access the promotion date is to load the article's talk page and click "show" on the article milestones -- I spent a couple of hours doing this for all 175 articles in my list, but only after I had put the list together. At the bottom of this page is a complete list of the articles I selected as important, and the year in which each was promoted. The list can be sorted by year if the reader wishes.

A few footnotes are in order. First, in 2004 there was an article category called "refreshing brilliant prose". Articles with that rating were later reassigned as FA, and I considered such articles to have been promoted in 2004. Second, there are about half a dozen articles that were promoted, then demoted, then promoted again later. In such cases, I used the year of the first promotion. A change to the second promotion would obviously decrease the numbers for early years and increase the numbers for later years, but the number of articles in this group is not large enough to make a meaningful difference. Third, since articles that have been demoted and are no longer FA do not appear at WP:FA, none of them have been included. If they were included, the result would obviously be to increase the numbers for the early years.

I will now discuss possible explanations of the sharp falloff in 2009 of promotions of important articles.

It might be suggested that the falloff occurred because editors were running out of important topics. That explanation might actually be valid for astronomy, where almost all of the central concepts are represented by featured articles. No other topic area comes close to that, though. I would estimate that there are several thousand topics I would have rated as important -- the 175 in the list are only a small fraction of that, and astronomy only accounts for about 20 of them.

It might be suggested that this is a result of the general decline in the number of editors. That phenomenon may be part of the explanation, but it can't account for the abrupt falloff in 2009 -- the shapes of the curves are quite different. My impression, although I have not tried to quantify it, is that the rates of promotion for articles on topics of minor importance do not show nearly as sharp a falloff -- if they show any falloff at all.

I believe that the only viable answer is that the policies at FAC changed in 2009 in a way that works against articles on important topics. I was not an active editor at that time so can't say from experience, but my impression is that the mechanism shifted from an emphasis on content and readability to an almost exclusive emphasis on nit-picking aspects of form, and above all to a rigorous demand for referencing of every sentence. Articles on important topics are generally much more work to reference than articles on minor topics, because the relevant literature is so much larger and because they demand a level of synthesis that makes it difficult to pin down each statement to one specific source.

Let me summarize the questions that I feel need to be addressed:

  1. Are these observations valid?
  2. Am I correct that a change in policies at FAC has caused the decline in promotions of important articles?
  3. Can we live with a situation in which FA status goes almost entirely to articles of minor importance?
  4. What can be done to fix the problem?

Followup

[edit]

After discussion at WT:FAC, there are a few more points to be made. One is that I clearly missed a substantial number of important articles, such as Poetry or Funerary art. Thus the numbers given above should be somewhat increased, although I see no reason to think the pattern would change.

A useful counterpoint to the arguments here can be found at a draft essay by user:Grandiose called Wikipedia has come far, which can be found at User:Grandiose/sandbox. The essay includes a table of statistics showing 764 FA-class articles of Top importance, and 1244 FA-class articles of High importance. I can't come up with numbers quite that high doing a category search, but they are in the right ballpark at least. However, these ratings are assigned by WikiProjects, many of which deal with restricted topic areas, and at least half of the "Top-FA" articles would probably not be considered important in the broader scheme of things. I would estimate that we have at most around 300 FA-class articles of high importance by any reasonable criterion, and it is pretty clear that the number is decreasing due to demotions much faster than it is increasing due to promotions. There is no obvious reason to think that this trend will reverse without a change in procedures.

I should perhaps have tried to make a distinction between broad topics with a huge literature, such as poetry and atom, versus important topics with a relatively limited literature, such as Statue of Liberty. A cursory scan indicates that such a distinction would not reduce the amplitude of the pattern I have noted, and probably would amplify it.

Appendix: List of articles used as data

[edit]
List of important articles and year promoted
Article Promoted
Castle 2009
Statue of Liberty 2010
Tower of London 2010
Windsor Castle 2011
Medal of Honor 2004
Archaea 2008
Cell nucleus 2006
DNA 2007
DNA repair 2004
Evolution 2005
Fungus 2009
Genetics 2008
Immune system 2007
Metabolism 2007
On the Origin of Species 2009
Proteasome 2007
Virus 2008
Ant 2008
Bird 2007
Dinosaur 2005
Lion 2007
Platypus 2006
Primate 2008
Sheep 2008
Tyrannosaurus 2006
Charles Darwin 2006
Actuary 2006
Antioxidant 2007
Caffeine 2006
Diamond 2005
Enzyme 2006
Helium 2004
Hydrogen 2006
Noble gas 2008
Oxygen 2008
Plutonium 2008
Uranium 2007
Microsoft 2005
Parallel computing 2008
Search engine optimization 2007
Scouting 2006
Tamil people 2005
Electrical engineering 2006
Hoover Dam 2010
Oil shale 2008
Medieval cuisine 2007
Antarctica 2006
Australia 2005
Canada 2006
India 2004
Indonesia 2007
Japan 2007
Washington, D.C. 2008
Yellowstone National Park 2004
Yosemite National Park 2005
Chicxulub crater 2007
Alzheimer's disease 2008
Asperger syndrome 2004
Autism 2005
Influenza 2006
Lung cancer 2007
Major depressive disorder 2008
Meningitis 2009
Menstrual cycle 2004
Multiple sclerosis 2005
Parkinson's disease 2011
Poliomyelitis 2007
Schizophrenia 2003
Tourette syndrome 2006
Water fluoridation 2009
Ancient Egypt 2008
British Empire 2008
Byzantine Empire 2004
California Gold Rush 2006
Great Fire of London 2006
Gunpowder Plot 2009
Han Dynasty 2009
King Arthur 2008
Manhattan Project 2011
Ming Dynasty 2008
Tang Dynasty 2007
Joan of Arc 2006
Pericles 2006
Candide 2008
Hamlet 2008
Romeo and Juliet 2008
Uncle Tom's Cabin 2007
Ernest Hemingway 2010
Samuel Johnson 2008
James Joyce 2004
Edgar Allan Poe 2008
William Shakespeare 2007
Archimedes 2007
Sound film 2006
Cirrus cloud 2011
Global warming 2006
Numerical weather prediction 2011
Tornado 2007
Tropical cyclone 2008
Wind 2009
The Beatles 2004
Bob Dylan 2003
Dmitri Shostakovich 2004
Pyotr Ilyich Tchaikovsky 2009
Free will 2004
Philosophy of mind 2006
Asteroid belt 2007
Atom 2008
Big Bang 2005
Binary star 2006
Earth 2007
Electron 2009
Galaxy 2007
General relativity 2008
Halley's Comet 2010
Jupiter 2009
Kuiper belt 2007
Main sequence 2008
Mars 2007
Mercury (planet) 2006
Moon 2007
Neptune 2008
Nebular hypothesis 2008
Oort cloud 2008
Photon 2006
Planet 2008
Pluto 2007
Quark 2009
Redshift 2006
Saturn 2007
Solar eclipse 2006
Solar System 2007
Speed of light 2004
Star 2006
Sun 2006
Supernova 2007
Venus 2004
White dwarf 2007
Yasser Arafat 2007
Gerald Ford 2006
Nikita Khrushchev 2009
Richard Nixon 2011
Barack Obama 2004
Ronald Reagan 2007
Atheism 2007
Bahá'í Faith 2004
Greek mythology 2004
Gregorian chant 2006
Intelligent design 2007
Knights Templar 2007
Mosque 2006
Nostradamus 2006
Vampire 2003
John Calvin 2009
Monarchy of the United Kingdom 2007
John Churchill, 1st Duke of Marlborough 2007
Elizabeth I of England 2005
James I of England 2004
James II of England 2004
Queen Victoria 2004
Aikido 2007
Baseball 2004
Dungeons & Dragons 2007
Gliding 2006
Olympic Games 2009
Boeing 747 2007
Boeing 777 2009
Wii 2007
Battleship 2007
Cannon 2008
Dreadnought 2009
Battle of Cannae 2006
Battle of Midway 2006
Battle of Moscow 2006
Roman–Persian Wars 2008
Yom Kippur War 2005