This test has 75 propositions and deliberately repeats the opposite of some earlier propositions at the end. However, I find this test to be worth taking because it deals with idealism vs. pragmatism on its second axis and so assesses one's political personality, so to speak, along with one's place on the traditional left/right scale. By the way, don't be offended if this test puts you near Stalin. By the site creator's own admission (in the FAQ's), Hitler and Stalin really don't belong with the democratic politicians because the test would need more extreme propositions to plot them accurately. Here is the link, followed by my results. A negative pragmatism score makes one an idealist, by the way:
http://politics.beasts.org/scripts/survey
1 left/right -0.4066
2 pragmatism -1.6530