dusmar84 wrote:
Is my understanding right in that they determine the passing rate (of the N4) after the tests have been taken and a bell curve of sorts has been established?
The test administrators reserve the right to move the passing score up or down, but they almost never do. Any variation in mean test scores is the fault of a glut of talented or stupid test takers, not a failure on the test makers' part to consistently make tests with exactly the same difficulty every year.
Also, is passing the N4 based on a cumulative score or do you have to pass each section?
If I'm not mistaken, ever since they switched to the N-system, you must get the passing score on all three sections to pass.
Best of luck! 
Asriel wrote:
@Jarvik7 -- So, uh.. *cough* just out of curiosity, what time is the test in China? And where can we track down some of these devious thieves?
I hope you're joking.