My score: 58/60 (96.67%).
The average scores for seniors at 50 colleges are appallingly bad. Harvard seniors did the "best" with a D+ (just under 70%). In last place of the colleges studied are seniors at St. Thomas Univ. (FL) with just 32.5% correct. Since the test is multiple choice with just 5 choices per question, this is only slightly better than the results from random guessing. [We'll leave the calculation of that number as an exercise for the reader.]
It's worse than that, though. It takes very little mental effort to eliminate two or even three of the choices on most of these questions. So how ignorant, stupid and/or lazy do you have to be to score 30% on this?
Sure glad we didn't waste a lot of money sending Tycho to Harvard...