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Conferences
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Conferences
Warsaw 2009: Presentations and short courses
The influence of the field time on data quality in list-based Web surveys
Session: Implementation Issues in Internet-based Surveys
Authors:
- Anja Göritz; University of Würzburg, Germany
- Stefan Stieger; University of Vienna, Austria
Abstract:
A short field time is an often-cited benefit of Web-based surveys that rely on pre-recruited people. However, it has never been examined how
different field times as implemented through different deadlines for participation influence response behaviour. Four experiments were conducted
in which the deadline for taking part in the study was varied across several days, and there was a control group who were not told any deadline. We
examined the impact of both stating a deadline versus not stating a deadline and the length of the deadline on the response rate, the retention rate, and
response completeness. It was found that response rises with the number of days a study is in the field. There is tentative evidence that the more
generous the deadline the smaller the retention rate and clear evidence that response completeness is lower.
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