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Response Quality in Nonprobability and Probability-based Online Panels
[journal article]
Abstract Recent years have seen a growing number of studies investigating the accuracy of nonprobability online panels; however, response quality in nonprobability online panels has not yet received much attention. To fill this gap, we investigate response quality in a comprehensive study of seven nonprobabi... view more
Recent years have seen a growing number of studies investigating the accuracy of nonprobability online panels; however, response quality in nonprobability online panels has not yet received much attention. To fill this gap, we investigate response quality in a comprehensive study of seven nonprobability online panels and three probability-based online panels with identical fieldwork periods and questionnaires in Germany. Three response quality indicators typically associated with survey satisficing are assessed: straight-lining in grid questions, item nonresponse, and midpoint selection in visual design experiments. Our results show that there is significantly more straight-lining in the nonprobability online panels than in the probability-based online panels. However, contrary to our expectations, there is no generalizable difference between nonprobability online panels and probability-based online panels with respect to item nonresponse. Finally, neither respondents in nonprobability online panels nor respondents in probability-based online panels are significantly affected by the visual design of the midpoint of the answer scale.... view less
Keywords
Federal Republic of Germany; sample; probability; online survey; response behavior; panel
Classification
Methods and Techniques of Data Collection and Data Analysis, Statistical Methods, Computer Methods
Free Keywords
GESIS Panel; nonprobability sample; probability-based sample; online panel; satisficing; response quality
Document language
English
Publication Year
2020
Page/Pages
p. 1-30
Journal
Sociological Methods & Research (2020)
DOI
https://doi.org/10.1177/0049124120914940
ISSN
1552-8294
Status
Published Version; peer reviewed