I go to the same school as Stinger86 so we have pop quizzes. They eased up on the pop quiz policy a little bit this year by allowing us to take them on WebCT within an allotted time period after they are announced. I just don't see how they think the pop quizzes (or lack of syllabi) helped bring up the Step 1 scores. The point is that the class before Stinger had one of the lowest MCAT averages in years, and his class has one of the higher averages (still below the National average though) and ended up with a lot of people with 250+ on the boards.
Maybe if my class does well on the boards they will get rid of pop quizzes for next year.