The results of my course are approximately as follows. 36 started of which around 18 made it out first time, total pass rate being approx 24 including a recourse. Of the 12 that didn't I have no idea as to their progress, but it was obvious to me that some of them should never have been there in the first place - they had no desire to be an ATCO and just wanted the money. The results from LATCC, of the 18 posted out first time 8 went into TC (terminal/approach) of which 3 validated, 2 posted to another unit and are still training, 1 failed completely. The 12 that went AC (area) 6 are valid AC , 1 valid after moving to tower, 2 retraining tower, 2 retraining another centre, 1 failed completely.
Take from that what you will, failure rates are pretty high but the proffession is desperate for ATCO's so retraining will be offered, it apperars that to fail you really have to be either (a) very unlucky or (b) have your head stuck so far up your a**e that no one can be bothered with you.
Despite what they will say CATC is a numbers game, and people are failed to provide the correct numbers for later courses and probably to pacify SRG that they are maintaining some sort of standard. My advice, get there, get your head in the books as in my experience nothing less than 90% in written tests is good enough despite the pass rate being 70%. Play the game, learn what each instructor likes - how they want you to control - keep your head down and do not make a name for yourself. The same applies when training for real, do as you are told, do not work the system for early go's, your 110% should see you through.
In my experience the very best at college do not make it purely because they believe they are the dogs danglies, keep working at it and you can make it but only with the right attitude!!!!