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Effects of Questionnaire Length on Participation and Indicators of Response Quality in a Web Survey

Open access
Galesic, M., Bosnjak, M.·2009·Public Opinion Quarterly

Abstract

This paper investigates how expected and actual question naire length affects cooperation rates and a variety of indicators of data quality in web surveys. We hypothesized that the expected length of a web-based questionnaire is negatively related to the initial willingness to participate. Moreover, the serial position of questions was predicted to influence four indicators of data quality. We hypothesized that ques tions asked later in a web-based questionnaire will, compared to those asked earlier, be associated with (a) shorter response times, (b) higher item-nonresponse rates, (c) shorter answers to open-ended questions, and (d) less variability to items arranged in grids. To test these assump tions, we manipulated the stated length (10, 20, and 30 minutes) and the position of questions in an online questionnaire consisting of ran domly ordered blocks of thematically related questions. As expected, the longer the stated length, the fewer respondents started and completed the questionnaire. In addition, answers to questions positioned later in the questionnaire were faster, shorter, and more uniform than answers to questions positioned near the beginning.

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Metadata

Authors
Galesic, M., & Bosnjak, M.
Venue
Public Opinion Quarterly
Published
2009-05-28
Volume
73
Issue
2
Pages
349-360
ISSN
  • 0033-362X (ISSN-L)
  • 1537-5331
OpenAlex
W1989597713
Cited by
1,297
References
0
FWCI
64.04
Type
journal article
Language
en
Open access
green

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.