First, when given a choice, 80% of people preferred sentences written in clear English (for example, 97% preferred ‘among other things’ over the more traditional Latin phrase ‘inter alia’) and the more complex the issue, the greater that preference. But second, it found that the more educated the person, the more specialist their knowledge, the greater their preference for plain English.
http://works.bepress.com/cgi/viewcontent.cgi?article=1000&context=christoph...