Is Writing Quality a Google Panda Algorithm Factor? | SEOptimise

From the article intro: "I had a thought earlier today, funnily enough whist interviewing copywriters, which led me to think: how important is the quality of writing as a ranking factor following the Panda update?
Obviously the Panda update has had a negative impact to websites which have low-quality content – but, from the other way around, how has this impacted high-quality content?
Forgetting completely about links for now and assuming all things are equal, does higher quality written content now have more of a positive impact to search rankings?
Well I thought I’d do a few tests with Google’s reading level search filter to compare the differences between how content ranks which is either basic, intermediate or advanced."