To be sure, none of the eight questions specifically challenge the political sensibilities of conservatives and libertarians. Still, not all of the eight questions are tied directly to left-wing concerns about inequality and redistribution. In particular, the questions about mandatory licensing, the standard of living, the definition of monopoly, and free trade do not specifically challenge leftist sensibilities.
How did the six ideological groups do overall? Here they are, best to worst, with an average number of incorrect responses from 0 to 8: Very conservative, 1.30; Libertarian, 1.38; Conservative, 1.67; Moderate, 3.67; Liberal, 4.69; Progressive/very liberal, 5.26.
Obviously, some questions are... Shall we say, debatable? Though many are not... How, exactly, can one screw up the monopoly question?
Yet on every question the left did much worse. On the monopoly question, the portion of progressive/very liberals answering incorrectly (31%) was more than twice that of conservatives (13%) and more than four times that of libertarians (7%). On the question about living standards, the portion of progressive/very liberals answering incorrectly (61%) was more than four times that of conservatives (13%) and almost three times that of libertarians (21%).