Titelaufnahme

Titel
Can online surveys represent the entire population? / Elisabeth Grewenig (ifo Institute at the University of Munich), Philipp Lergetporer (ifo Institute at the University of Munich), Lisa Simon (ifo Institute at the University of Munich), Katharina Werner (ifo Institute at the University of Munich), Ludger Woessmann (ifo Institute at the University of Munich, CESifo, CAGE and IZA) ; IZA Institute of Labor Economics
VerfasserGrewenig, Elisabeth In der Gemeinsamen Normdatei der DNB nachschlagen ; Lergetporer, Philipp In der Gemeinsamen Normdatei der DNB nachschlagen ; Simon, Lisa In der Gemeinsamen Normdatei der DNB nachschlagen ; Werner, Katharina In der Gemeinsamen Normdatei der DNB nachschlagen ; Woessmann, Ludger In der Gemeinsamen Normdatei der DNB nachschlagen
KörperschaftForschungsinstitut zur Zukunft der Arbeit In der Gemeinsamen Normdatei der DNB nachschlagen
ErschienenBonn, Germany : IZA Institute of Labor Economics, September 2018
Ausgabe
Elektronische Ressource
Umfang1 Online-Ressource (17 Seiten)
SerieDiscussion paper ; no. 11799
URNurn:nbn:de:hbz:5:2-166274 Persistent Identifier (URN)
Zugriffsbeschränkung
 Das Dokument ist frei verfügbar.
Volltexte
Can online surveys represent the entire population? [0.42 mb]
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Zusammenfassung (Englisch)

A general concern with the representativeness of online surveys is that they exclude the "offline" population that does not use the internet. We run a large-scale opinion survey with (1) onliners in web mode, (2) offliners in face-to-face mode, and (3) onliners in faceto- face mode. We find marked response differences between onliners and offliners in the mixed-mode setting (1 vs. 2). Response differences between onliners and offliners in the same face-to-face mode (2 vs. 3) disappear when controlling for background characteristics, indicating mode effects rather than unobserved population differences. Differences in background characteristics of onliners in the two modes (1 vs. 3) indicate that mode effects partly reflect sampling differences. In our setting, re-weighting online-survey observations appears a pragmatic solution when aiming at representativeness for the entire population.