I hate to see this bologna spun up again by The Who. The Who has not the slightest clue as to what represents valid data, nor the statistical regression or significance of same. It's pointless to argue a point that is not understood by one of the debaters. The Who does not understand this material and therefore cannot form a logical conclusion based thereupon. It's fruitless.
Also, The Who's representations of "zero homicides and one suicide" at TBS's is completely false. One needs to look no further than ISACCORP.org's list of dead kids. That destroys the premise of The Who's argument and therefor invalidates any conclusion based upon the faulty data.
Remember, this is the same guy who stated that there are "10,000 practicing psychologists" in the US of A and that the "vast majority" of them refer to TBS's. Now, this is ridiculous on a copuple of levels. One, there are over one hundred thousand practicing psychologists curently working in the US of A and it is well-known that only a tiny fraction thereof refer to "TBS," "EG" or "BM" facilities.
The Who is a person who likes to argue for arguments sake, not for clarification of data or edificatiopn of the reader. Just keep that in mind when you deal with him - he's oftentimes nonsensical, especially with "facts and figures."