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Hello Tom

May I just observe that no questionnaire is 'validated' and remains so in all contexts?  In essence validity refers to the ability of the questionnaire to assess what the user intends it to.  A questionnaire may be quite 'valid' for one purpose and/or client group at a particular time and place but not at another.    In essence there are no 'validated questionnaires', although the 'use of a questionnaire' will be to a greater or lesser extent 'valid'.  

Following from this it is necessary for the user of any questionnaire to carefully assess whether the questionnaire will meet her/his needs.   Is the necessary content present? Are item wording and response scales appropriate to the content area and the client population? etc.   It is unwise to take it for granted that any questionnaire is a priori 'valid'...

You may already be fully aware of this Tom, in which case please excuse me for pointing out the bleeding obvious.

Best wishes,
Rod

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Rod O'Connor PhD
Director, ROA - Healthcare Measurement and Development
www.RodOConnorAssoc.com
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Conjoint Associate Professor, School of Public Health
and Community Medicine, Faculty of Medicine,
University of New South Wales, Sydney, Australia
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ph. +61- 2 9555 9916 
mob. +61- 413 60 70 73
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Tom Jefferson said the following on 9/04/2007 5:44 PM:
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Good morning and happy Easter Monday to you all, wherever you may be.
 
Does anyone know of a validated questionnaire directed at primary care physicians assessing their knowledge of management of Chronic Obstructive Airways Disease (COAD)?
 
I am involved in a controlled before and after study assessing the impact on physicians and ultimately on patients' lives of introducing a guideline on COAD management and we would like to take a baseline fix of the level of knowledge, and then repeat it several times after guideline introduction.
The study is set in one of the very few primary care group practices in Italy (32 physicians), on the cost, north of Rome.
 
Many thanks for your help.
 
Tom.
 
--
Dr Tom Jefferson
Cochrane Acute Respiratory Infection Group
Rome
tel 0039 3292025051
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