Re: Confounders and Coincidences - Numerical Examples

[BERNARD L COHEN <blc+@PITT.EDU>]

On Sun, 11 May 2003 epirad@mchsi.com wrote:



> Dr. Cohen,

>

> Your response

>

> "If there is a problem, please give me a concrete numerical example (made-up

> is fine)."

>

> confirms our (Field, R.W., Smith, B.J., and Lynch, C.F.) view we wrote in

> Cohen’s Paradox, Health Physics 77(3): 328-329,1999.

>

> A quote from that letter published in the Health Physics Journal states,

> "Cohen has not accepted the fact that it may be impossible to explain Cohen's

> Paradox in definitive analytical terms with his existing data because it is

> not always possible to identify empirical sources of ecologic bias from

> aggregate (ecologic) data alone (Field et al. 1998a)."



	--That doesn't say you cannot make up a possible source. I am not

asking that you prove it to be true.



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