Thank you, Donald, for forwarding this email to me - I had no idea that I 
had provoked such a considered and thoughtful response all those years 
ago! Though I am not subscribed to edstat these days, it tempts me to 
rejoin - I miss the Big Issues!

>Ronan's definition introduces the important concept of a "meas-
>urement process" -- a process that we use to measure the values 
>of a property.  For any given property of entities, researchers 
>may view the property as if there is one specific property, but 
>there may be several ways of measuring the value of the property 
>in entities.

This is something I introduce because I think that it is an important 
aspect of understanding how science constructs knowledge. The decisions 
about what science should be about and the decisions about what are the 
properties to be measured are socially constructed. For years, I used to 
teach a class on 'measuring health and disease' - incidence, prevalence, 
various standard mortality rates (infant, neonatal) - and so on. I now 
feel that the most interesting thing is not how we measure disease but 
how we define disease. Homosexuality use to be a disease. My students 
argue as to whether a psychologically-induced paralysis is a disease or 
not (I have a fascinating case history from my psych days). And so on. 

The important thing is that what we see as an entity and what we see as a 
property are themselves the legitimate - and important - objects of 
science. Hence my desire to call into question the act of measurement as 
problematic. 




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    _/_/_/      _/_/     _/_/_/     _/  Ronan M Conroy ([EMAIL PROTECTED])
   _/    _/   _/   _/  _/          _/   Lecturer in Biostatistics
  _/_/_/    _/          _/_/_/    _/    Royal College of Surgeons
 _/   _/     _/              _/  _/     Dublin 2, Ireland
_/     _/     _/_/     _/_/_/   _/      +353 1 402 2431 (fax 2329) 
                                        http://www.rcsi.ie
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/




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