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Prenotification in Web-Based Access Panel Surveys: The Influence of Mobile Text Messaging Versus E-Mail on Response Rates and Sample Composition
Michael Bosnjak1*,
Wolfgang Neubarth2,
Mick P. Couper3,
Wolfgang Bandilla2,
and
Lars Kaczmirek2
1 University of Mannheim
2 ZUMA, Center for Survey Research and Methodology, Mannheim, Germany
3 University of Michigan, Institute for Social Research
* To whom correspondence should be addressed. E-mail: bosnjak{at}tnt.psychologie.uni-mannheim.de.
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Abstract |
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To compare the effectiveness of different prenotification and invitation procedures in a web-based 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.
First published on December 3, 2007, doi:10.1177/0894439307305895
Social Science Computer Review 2008;26:213.
A more recent version of this article appeared on May 1, 2008

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