I agree with Dennis Roberts sentiment that:
>
>what seems like a simple notion is very complicated
>
This issue is being actively discussed and analyzed by people in AAPOR,
the American Association of Public Opinion Researcher's. You can check
their www site (http://www.aapor.org/main.html) as well as examine
their journal and the upcoming meetings. I am willing to bet there
wiil be multiple presentations on this topic.
Best,
Alan
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