RE: Mechanisms are Needed to Explain Cohen's Data

["Ted Rockwell" <tedrock@CPCUG.ORG>]

> The point is that the mechanism is all-important.



Of course, it's always nice to really understand the mechanism.  But the

whole practice of medicine involves having little understanding of

mechanisms, but having to go on and make decisions anyway.



Cohen is not working with a computer model which he then has to try to fit

to a larger population.  He measured the population itself, albeit with

averages.  His is a picture of what happens to real people in their homes.

Other data is valid to the extent it agrees with the real picture he

measured.  It does not depend on understanding the mechanisms.



TR





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