I bet the average FReeper would score higher than the average of any of the universities tested.
I got the chance to go to the Democratic Underground ( the left wing version of Free Republic ). Apparently a lot of them took the test as well. Not scoring very well compared to Freepers. See here for a glimpse :
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=102x2995426