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Respondent incentives in a national face-to-face survey: effects on outcome rates, sample composition and fieldwork efforts [journal article]
Source: Methoden, Daten, Analysen (mda), 7 (2013) 1. p.89-122
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
Fieldwork Monitoring in Practice: Insights from 17 Large-scale Social Science Surveys in Germany [journal article]
Source: Survey Methods: Insights from the Field, (2020). p.1-13