@article{PostClassKohler2020,
  author    = {Post, Julia C. and Class, Fabian and Kohler, Ulrich},
  title     = {Unit nonresponse biases in estimates of SARS-CoV-2 prevalence},
  series = {Survey research methods},
  volume    = {14},
  journal   = {Survey research methods},
  number    = {2},
  publisher = {European Survey Research Association},
  address   = {Duisburg},
  issn      = {1864-3361},
  doi       = {10.18148/srm/2020.v14i2.7755},
  pages     = {115 -- 121},
  year      = {2020},
  abstract  = {Since COVID-19 became a pandemic, many studies are being conducted to get a better understanding of the disease itself and its spread. One crucial indicator is the prevalence of SARS-CoV-2 infections. Since this measure is an important foundation for political decisions, its estimate must be reliable and unbiased. This paper presents reasons for biases in prevalence estimates due to unit nonresponse in typical studies. Since it is difficult to avoid bias in situations with mostly unknown nonresponse mechanisms, we propose the maximum amount of bias as one measure to assess the uncertainty due to nonresponse. An interactive web application is presented that calculates the limits of such a conservative unit nonresponse confidence interval (CUNCI).},
  language  = {en}
}
@article{KohlerPost2023,
  author    = {Kohler, Ulrich and Post, Julia C.},
  title     = {Welcher Zweck heiligt die Mittel?},
  series = {Zeitschrift f{\"u}r Soziologie},
  volume    = {52},
  journal   = {Zeitschrift f{\"u}r Soziologie},
  number    = {1},
  publisher = {de Gruyter},
  address   = {Oldenburg},
  issn      = {2366-0325},
  doi       = {10.1515/zfsoz-2023-2001},
  pages     = {67 -- 88},
  year      = {2023},
  abstract  = {Im Vergleich zu Umfragen an Wahrscheinlichkeitsstichproben bieten Umfragen an Access-Panels, die auf Nicht-Wahrscheinlichkeitsstichproben basieren, unbestreitbare wirtschaftliche Vorteile. Diese Vorteile gehen jedoch mit unvermeidbaren Qualit{\"a}tseinbußen einher, die auch dann bestehen bleiben, wenn Erstere sehr niedrige Responseraten haben. Daher m{\"u}ssen die wirtschaftlichen Vorteile und die methodischen Einschr{\"a}nkungen gegeneinander abgewogen werden. Es wird argumentiert, dass diese Abw{\"a}gung anhand normativer Festlegungen erfolgen muss. Unter Anwendung der hier vorgeschlagenen Maßst{\"a}be kommt der Beitrag zu dem Schluss, dass die Qualit{\"a}tsanspr{\"u}che an {\"u}ber Massenmedien verbreitete Meinungsumfragen h{\"o}her sein sollten als f{\"u}r rein (sozial)wissenschaftliche Zwecke.},
  language  = {de}
}
@article{KohlerPost2023,
  author    = {Kohler, Ulrich and Post, Julia C.},
  title     = {Pulp Science?},
  series = {Gesellschaft, Wirtschaft, Politik : GWP : Sozialwissenschaften f{\"u}r politische Bildung},
  volume    = {72},
  journal   = {Gesellschaft, Wirtschaft, Politik : GWP : Sozialwissenschaften f{\"u}r politische Bildung},
  number    = {4},
  publisher = {Budrich},
  address   = {Leverkusen},
  issn      = {2196-1654},
  doi       = {10.3224/gwp.v72i4.09},
  pages     = {475 -- 483},
  year      = {2023},
  language  = {de}
}