The Roper Center for Public Opinion Research is the leading educational facility in the field of public opinion. The Center exists to promote the …查看更多内容
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Can I get information on response rates and sampling procedures?
答:
The documentation for a given survey usually gives basic information on sampling procedures. Working with data contributors, the Center is currently enhancing efforts to provide more complete …
The documentation for a given survey usually gives basic information on sampling procedures. Working with data contributors, the Center is currently enhancing efforts to provide more complete methodological details...
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