Unfortunately, most of the scores I am hearing in this forum MUST be ficticious. I am the Head Teacher of PDHPE at a High School with 800 odd students. I make EVERY kid in years 7 to 10 do the beep test twice a year. I have done this for 6 years now. Best score thus far rates in the high 14's. I do, however, talk to many PE teachers from other schools who deliberately run the test on a shorter course so as to not upset the delicate ego's of their students. It is very possible to run 2-3 levels higher on a course that is 2m shorter. Incidently our state hockey player has one of the best results I have heard of. Ask anyone involved in the AIS scout program for rowing, cycling etc - they look at body composition and VO2 max results (which can be estimated using the beep test) If you don't have it then you don't have it - seeya later alligator!
Finally someone brings some actual stance into the debate as a PE teacher who administers the test itself....! Vo2 can be measured through the beep test, but it is a very very rough estimate that is certainly not relied on, like you have stated.
I always find it interesting that 'fitness' is measured by such a specific test - much mention has been made of Lance Armstrong and others. It is important to remember that someone might have a massive engine (Cardiorespiratory System) but still do poorly at the beep test due to biomechanical inefficiencies/technique issues. An example would have to be Ian Thorpe - can swim like a mofo but resembles a drunken oaf when he runs. I would love to see an accurate version of a beep test for a multitude of different sports - besides a full VO2 max test (cost $1000) if you have to pay. Then we would see some truly amazing results - think for a second of the former cyclist Miquel Indurain... his lung capacity was 11 litres when he was at his peak. The average adult lung capacity is 5 litres - what a FREAK!
*continue of point*
I was fortunate enough to be able to be part of a small group gaining access to a strict conditioned Vo2 max tests, both for a long distance runners as well as a rower (hooked up the same as the runner, but on an ergo... bit of a first at the Uni of Ballarat, but was good to see...). The runner, who was a top national performing long distance runner was scoring 15's in the beep test.. This could be widely critizied, though in the vo2 max test, he recored mid 70's.. So if you can beat his score in a beep test, you did it wrong...! Even the rower (our stroke for our firsts crew) scored 69.. and thats still damn high considering!
There are nearly 20 different tests that estimate your vo2 max.. Beep test being one of them.. So if you want to see if you actually should of scored a 17.11 on the beep test, do another 2 or 3 vo2 max tests, and average your scores.. i bet your beep test will be an out lier