Pforr Klaus, Michael Blohm, Annelies G. Blom, Barbara Erdel, Barbara Felderer, Mathis Fräßdorf, Kristin Hajek, Susanne Helmschrott, Corinna Kleinert, Achim Koch, Ulrich Krieger, Martin Kroh, Silke Martin, Denise Saßenroth, Claudia Schmiedeberg, Eva-Maria Trüdinger, Beatrice Rammstedt (2015): Are incentive effects on response rates and nonresponse bias in large-scale face-to-face surveys generalizable to Germany? Evidence from ten experiments : Public Opinion Quarterly, 79, 3, pp. 740-768. more