An umbrella for series of small UX tests we want to run on Wikipedia.org page. Here is a related presentation deck: https://docs.google.com/a/wikimedia.org/presentation/d/1_RkkHqHGS2IABvCVcUWO4qKQqsyPdJq7_Y2gwYXRIYI/edit?usp=sharing /
We've compiled documentation around Wikipedia.org Portal Improvements project here: https://www.mediawiki.org/wiki/Wikipedia.org_Portal_Improvements
Also there is some information about our research plans for the project here: https://meta.wikimedia.org/wiki/Research:Portal_experiments