If you are asking about whether there is more page views as a result of the editathon, you could use this tool:

https://tools.wmflabs.org/glamtools/treeviews/

That can give you monthly stats on the page views on a set of articles by category (or set of category). Coming before-and-after stats may tell you if it makes an impact.

Kerry

From: Wiki-research-l [mailto:wiki-research-l-bounces@lists.wikimedia.org] On Behalf Of Gerard Meijssen
Sent: Friday, 29 January 2016 2:03 AM
To: Research into Wikimedia content and communities <wiki-research-l@lists.wikimedia.org>
Cc: Gerard van Wijk <researchenik@gmail.com>
Subject: [Wiki-research-l] Planning a project

Hoi,

One of the area's where Wikipedia is not performing optimally is in the area of mental health. I am working towards an editathon on the subject. The aim is to consider information in multiple languages not only Dutch.

What I am looking for is how we can measure the impact it has on traffic. After all I am interested in the whole of the subject not only in the articles that are updated or written.

My problem is in two: what is the best way of identifying a subject as broad as mental health and is it possible to get historic information on traffic?

Thanks,

      GerardM

PS I am working on Wikidata on the subject.