Re: [Wikimedia-l] User retention statistics?

2012-04-22 Thread Yaroslav M. Blanter
Thank you all for the replies, I need some time to process this 
information.


Cheers
Yaroslav

1. What is the average lifetime of a Wikipedia editor (for instance 
the
one with at leat 1000 contributions)? I recollect smth about two 
years, but
I am pretty sure I have never seen any research on this. How does it 
depend

on the number of contributions?

2. What are the main reasons why these editors stop editing? Is this
correct, for instance, that external reasons are much more important 
than
internal (on-wiki troubles and wiki-related harassment) reasons? The 
same

for say those above 1 edits?

Thanks in advance
Cheers
Yaroslav

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Re: [Wikimedia-l] User retention statistics?

2012-04-18 Thread Philippe Beaudette
Yaroslav -

You'll probably find background for some of this on the strategy wiki -
that's the community health group that you're thinking about. :-)

This is a survey in particular that might interest you:
http://strategy.wikimedia.org/wiki/Task_force/Community_Health/Former_contributors_survey

Also, Zack has some statistics from the Summer of Research, I think, on the
other questions you ask.  You might write him.

pb
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415-839-6885, x 6643

phili...@wikimedia.org



On Wed, Apr 18, 2012 at 11:07 AM, Yaroslav M. Blanter pute...@mccme.ruwrote:

 My message is inspired by discussion in this thread (
 http://en.wikipedia.org/wiki/**Wikipedia:Administrators%27_**
 noticeboard#Loss_of_more_and_**more_and_more_established_**
 editors_and_administratorshttp://en.wikipedia.org/wiki/Wikipedia:Administrators%27_noticeboard#Loss_of_more_and_more_and_more_established_editors_and_administrators)
 on Englush Wikipedia. Whereas the thread itself is not relevant to this
 list, and the points get re-iterated on a regular basis, there were
 statements made there which contain quantitative estimates (for instance
 that 90% established users who leave do it because they get a new job or
 have their external life changed in some other way, and not because of
 harassment etc). Most probably these numbers are not really justified, but
 then I wanted to know what real numbers are. I am an Rcom member, but I can
 not recollect such research being accomplished (I might be wrong of
 course). I could not find data easily either (I spent half an hour because
 I remembered we had a Community Health initiative group which somehow
 evolved into the Movement Roles, but the Movement Roles pages on Meta do
 not talk about community health at all, and I could not even find an
 appropriate page to ask the question).

 After this long introduction, does somebody know / can point out the
 answers to the questions:

 1. What is the average lifetime of a Wikipedia editor (for instance the
 one with at leat 1000 contributions)? I recollect smth about two years, but
 I am pretty sure I have never seen any research on this. How does it depend
 on the number of contributions?

 2. What are the main reasons why these editors stop editing? Is this
 correct, for instance, that external reasons are much more important than
 internal (on-wiki troubles and wiki-related harassment) reasons? The same
 for say those above 1 edits?

 Thanks in advance
 Cheers
 Yaroslav

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Re: [Wikimedia-l] User retention statistics?

2012-04-18 Thread Robert Rohde
PS. This story was triggered by Fastily's retirement.  He has 46000
edits on enwiki, and only about 620 editors have reached that plateau.
 Of these, 90% are still active.  So such retirements are relatively
rare.  Personally, I hope he decides to come back after taking some
time to relax and recharge.  It seems to be the case that many such
declared retirements aren't really permanent.

-Robert Rohde

On Wed, Apr 18, 2012 at 4:08 PM, Robert Rohde raro...@gmail.com wrote:
 On Wed, Apr 18, 2012 at 11:07 AM, Yaroslav M. Blanter pute...@mccme.ru 
 wrote:
 snip

 1. What is the average lifetime of a Wikipedia editor (for instance the one
 with at leat 1000 contributions)? I recollect smth about two years, but I am
 pretty sure I have never seen any research on this. How does it depend on
 the number of contributions?

 For enwiki, using data from last August:

 28243 users have at least 1000 edits (all namespaces).

 Of these, 9898 had not edited in the six months before the end of the data 
 set.

 So about 65% of the major editors are still active, at least occasionally.

 The mean wiki-lifetime for the 28243 major users was 49.9 months.

 For the 9898 users who were not recently active, the mean
 wiki-lifetime was 35.6 months.


 Further, there are 4685 users with at least 1 edits, and of these,
 all but 914 were still active in the last 6 months of the data set.
 So 80% of the editors at the very high end are still active (at least
 occasionally).  The mean wiki-lifetime on the total group is 60.5
 months, and the departed group is 42.6 months.


 Incidentally, the mean account age of individuals editing article
 space is now over 3 years for enwiki.  A lot of the work is being by
 the relative old-timers.  By the same token though, people who have
 ever made it to 1000 edits are more likely than not to still be active
 today.

 -Robert Rohde

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