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%T Response Quality in Nonprobability and Probability-based Online Panels %A Cornesse, Carina %A Blom, Annelies G. %J Sociological Methods & Research %N 2 %P 879-908 %V 52 %D 2023 %K GESIS Panel; nonprobability sample; probability-based sample; online panel; satisficing; response quality %@ 1552-8294 %~ GESIS %> https://nbn-resolving.org/urn:nbn:de:0168-ssoar-74631-v2-0 %X 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. %C GBR %G en %9 Zeitschriftenartikel %W GESIS - http://www.gesis.org %~ SSOAR - http://www.ssoar.info