bushidomartialarts
Senior Master
That sounds strange to me.. at least for advanced students and those that improve at a more relaxed pace. Also, this does not exactly give the student the impression that the art is a lifelong study.
it in fact encourages lifelong study.
the psychology works like this: people (especially children, but adults too) work longer and harder with frequent reinforcement. therefore, the more frequently you test, the longer your average person is going to train. they'll also train harder and with more intensity with that (fairly) immediate goal ahead of them.
if you want to see this principal in action, watch your body of advanced students. how often have you seen someone test for, say, second dan, and then not really take class for a year or two? they may still teach, or may train in some other art. but frequently they take a year off from serious training -- it's hard to keep motivated to do so when you know your next test is three years off.