You could always link to the actual survey:
http://news.brown.edu/pressreleases/2011/03/survey
When will pollsters stop using "fair" as a measure of popularity? All it does it skew the results negative, since news organizations will inevitably take "fair" to be negative, when I would argue it's pretty much the same as saying "no opinion".
Brown's choices were excellent, good, ONLY fair or poor. Not simply "fair". ONLY fair has a negative connotation - not good and could be better.
This has been pretty standard polling methodology for decades. I'm not sure why it should be changed.
