In my experience, software engineers are not assigned to projects. They choose to join a project that needs someone. If the project is rewarding, they stay for a while. Paid contributors are still voluntary.
Google publishes https://diversity.google/annual-report/. The ASF committer survey is not as representative, because of the bias and also because it does not include non-committers. This is not really specific to Google. If it were possible to compare "diversity of FooCorp employees" versus "diversity of FooCorp employees regularly contributing to Apache projects" that might be a useful data point to track over time. Kenn On Thu, Jul 18, 2019 at 7:27 PM Niclas Hedhman <[email protected]> wrote: > And I think it doesn't matter for my point... a lot of people has open > source contribution as a part of their job (I think commit stats clearly > shows that). So instead of debating whether it is 30% or 90% of the > contributions coming from employed people, I hope to get comments on my > point. > > Thanks > > On Fri, Jul 19, 2019 at 10:23 AM Sam Ruby <[email protected]> wrote: > > > On Thu, Jul 18, 2019 at 9:50 PM Justin Mclean <[email protected]> > > wrote: > > > > > > Hi, > > > > > > > Ok, cool... so 50% of those that like to reply to, and have time for, > > > > surveys… > > > > > > It probably a little more representative than you may think. While > there > > might be a couple of assumptions made, plugging in the numbers in say [1] > > gives a 95% confidence of 3.3% margin of error or 99% confidence of a > 4.4% > > margin of error. But hopefully the new survey will explore things along > > these lines and give us a better picture. > > > > Unfortunately, such calculations don't help if there is statistical > > bias[2] involved. Note that bias in this case is a technical term and > > does not necessarily have anything to do with intent. > > > > Source: was a math major. > > > > > Thanks, > > > Justin > > > > > > 1. https://www.checkmarket.com/sample-size-calculator/ > > > > 2. https://en.wikipedia.org/wiki/Bias_(statistics) > > > > > -- > Niclas Hedhman, Software Developer > http://polygene.apache.org - New Energy for Java >
