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Assessing the use of mode preference as a covariate for the estimation of measurement effects between modes: a sequential mixed mode experiment [journal article]
Source: Methods, data, analyses : a journal for quantitative methods and survey methodology (mda), 10 (2016) 2. p.119-142
Response Rates in the European Social Survey: Increasing, Decreasing, or a Matter of Fieldwork Efforts? [journal article]
Source: Survey Methods: Insights from the Field, (2018). p.1-12