Advance letters as a way of reducing non-response in a National Health Telephone Survey: Differences between listed and unlisted numbers

  • Elena von der Lippe Robert Koch Institute
  • Patrick Schmich
  • Cornelia Lange
Keywords: CATI, Nonresponse

Abstract

The paper reports a methodological study based on the German Health Update Survey 2009. The study generated telephone numbers randomly and determined the listing status of the selected numbers. The set of listed numbers was randomly split: one half received advance letters, the other half did not. Differences in response rates and demographic characteristics are analyzed in detail.

Author Biography

Elena von der Lippe, Robert Koch Institute
Scientific Researcher, Epidemiology and Health Reporting
Published
2011-12-22
How to Cite
von der Lippe, E., Schmich, P., & Lange, C. (2011). Advance letters as a way of reducing non-response in a National Health Telephone Survey: Differences between listed and unlisted numbers. Survey Research Methods, 5(3), 103-116. https://doi.org/10.18148/srm/2011.v5i3.4657
Section
Articles