Effects of Questionnaire Length on Participation and Indicators of Response Quality in a Web Survey
Effects of Questionnaire Length on Participation and Indicators of Response Quality in a Web Survey
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DOI：
10.1093/poq/nfp031
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发表时间：
2009-06-01
影响因子：
3.4
通讯作者：
Bosnjak, Michael
中科院分区：
文献类型：
--
作者：
Galesic, Mirta;Bosnjak, Michael
本文研究了网络调查中调查问卷的预期长度和实际长度对合作率和各种数据质量指标的影响。我们假设，基于网络的调查问卷的预期长度与最初的参与意愿呈负相关。此外，还预测了问题的连续位置对数据质量的四个指标的影响。我们假设，与之前提出的问题相比，在基于网络的问卷中稍后提出的问题将与(A)更短的回答时间，(B)更高的项目无回复率，(C)对开放式问题的更短的回答，以及(D)以网格排列的项目的较少变异性相关。为了检验这些假设，我们操纵了在线问卷中指定的长度(10分钟、20分钟和30分钟)和问题的位置，该问卷由随机排序的主题相关问题块组成。正如预期的那样，规定的长度越长，开始和完成调查问卷的受访者就越少。此外，对问卷后面的问题的回答比对靠近开头的问题的回答更快、更短、更一致。
This paper investigates how expected and actual questionnaire 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 questions 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 assumptions, we manipulated the stated length (10, 20, and 30 minutes) and the position of questions in an online questionnaire consisting of randomly 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.