William, I suggest you post your question to the Survey Research Methods Section list at SRMSNET@LISTSERV.UMD.EDU . Someone is likely to know something about the issue you are interested in. Good luck – Dominic
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Dominic Lusinchi
Far West Research Consulting
Applied Statistics – Social Research – Sociology
San Francisco, California
dominic@farwestresearch.com
1-415-664-3032
Curriculum Vitæ
Blog: Sociological Improvisations
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Original Message------
Does anyone in this network know about any empirical evidence related to the impact that asking about legal immigration status has on survey response rates?