Barron's SAT US Hist. vs. the real thing

<p>So I'm prepping for next week's SAT subject tests, and I decided to take a break from McGraw-Hill practice tests to try one from Barron's. Well... damn. I was doing pretty well on the MH tests, but I completely bombed the Barron's one. Can someone tell me whether Barron's tests are just ridiculously hard or the MH tests are too easy?</p>

<p>I took a PSAT one from Barron’s. I think some of the answers in the answer key are wrong, but maybe that’s because I was mad…</p>