Hits 1-2 within 2 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
The impact of incentives and interview methods on response quantity and quality in diary- and booklet-based surveys [journal article]
Source: Survey Research Methods, 4 (2010) 2. p.91-101