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@article{ Bosnjak2008, title = {Prenotification in web-based access panel surveys: the influence of mobile text messaging versus e-mail on response rates and sample composition}, author = {Bosnjak, Michael and Neubarth, Wolfgang and Couper, Mick P. and Bandilla, Wolfgang and Kaczmirek, Lars}, journal = {Social Science Computer Review}, number = {2}, pages = {213-223}, volume = {26}, year = {2008}, issn = {0894-4393}, doi = {https://doi.org/10.1177/0894439307305895}, urn = {https://nbn-resolving.org/urn:nbn:de:0168-ssoar-449759}, abstract = {To compare the effectiveness of different prenotification and invitation procedures in a webbased three-wave access panel survey over 3 consecutive months, we experimentally varied the contact mode in a fully crossed two-factorial design with (a) three different prenotification conditions (mobile short messaging service [SMS], e-mail, no prenotice) and (b) two “invitation and reminder" conditions (SMS, e-mail). A group with nearly complete mobile phone coverage was randomly assigned to one of these six experimental conditions. As expected, SMS prenotifications outperformed e-mail prenotifications in terms of response rates across all three waves. Furthermore, e-mail invitation response rates outperformed those for SMS invitations. The combination of SMS prenotification and e-mail invitation performed best. The different experimental treatments did not have an effect on the sample composition of respondents between groups. (author's abstract)}, keywords = {Umfrageforschung; survey research; Online-Befragung; online survey; Panel; panel; Datengewinnung; data capture; Stichprobe; sample; Antwortverhalten; response behavior; E-Mail; e-mail}}