The Intercollegiate Studies Institute has devised a quiz testing civic literacy. The average score is only 49%– though it improved to 78% online in November, perhaps because the online group is self-selected, and perhaps because elections improve awareness of civic matters for a while.
The most remarkable finding is that elected officials do worse than average, scoring only 44%!
You can take the quiz here. (I got 100%. Nana-nana-boo-boo.)