Until an official policy is approved by the Wikimedia Research Committee regarding ad-hoc data collection and technical support for researchers, individual requests can be submitted following these instructions.
How to request technical support for research purposes
Requests for technical support and ad-hoc data collection for research purposes can be submitted by creating a project page on this wiki.
Please include the following information with your request:
which Wikimedia projects you want information from
what information you want
the motivation for your request
a short description of your research project (including external links if applicable)
the name, affiliation and contact details of the main applicant
the name of any regulator such as a university ethics committee who has endorsed or vetted the application