Hits 1-3 within 3 documents
An evaluation of incentive experiments in a two-phase address-based sample mail survey [journal article]
Source: Survey Research Methods, 7 (2013) 3. p.207-218
Zur Wirkung unterschiedlicher materieller Incentives in postalischen Befragungen: ein Literaturbericht [journal article]
Source: ZUMA Nachrichten, 30 (2006) 58. p.81-100
Are incentive effects on response rates and nonresponse bias in large-scale, face-to-face surveys generalizable to Germany? Evidence from ten experiments [journal article]
Source: Public Opinion Quarterly, 79 (2015) 3. p.740-768