Hits 51-53 within 53 documents
Advance letters as a way of reducing non-response in a National Health Telephone Survey: differences between listed and unlisted numbers [journal article]
Source: Survey Research Methods, 5 (2011) 3. p.103-116
Hits 51-53 within 53 documents
Author(s): Mack, Alexander.- 2016. 19p.
Author(s): Schupp, Jürgen; Frick, Joachim R..- 2010. 18p.
Author(s): von der Lippe, Elena; Schmich, Patrick; Lange, Cornelia
Source: Survey Research Methods, 5 (2011) 3. p.103-116