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Socio-Demographic Study of Telephone Survey Nonrespondents

Response rates for telephone surveys in the United States are declining (Curtin et al., 2005; Steeh et al., 2001). The impact of nonresponse on estimates derived from a telephone survey depends on the extent to which nonrespondents differ from respondents on survey items of interest. Whether survey estimates are unbiased depends on the assumption that nonrespondents are missing at random (MAR). When nonrespondents differ from respondents the MAR assumption does not hold and nonresponse error may be present in some of the survey estimates.