A comparison between responses from a propensity-weighted web survey and an identical RDD survey
A comparison between responses from a propensity-weighted web survey and an identical RDD survey
复制标题
DOI：
10.1177/0894439303256551
复制
发表时间：
2004-03-01
影响因子：
4.1
通讯作者：
Berry, SH
中科院分区：
文献类型：
--
作者：
Schonlau, M;Zapert, K;Berry, SH
作者进行了两次关于医疗保健的大规模调查，一次是网络调查，一次是随机数字拨号电话调查。网络调查使用了一种统计技术，倾向评分，以调整选择偏差。比较两项调查的加权回答，37个问题中有8个问题的回答没有显著差异。当问题涉及被调查者的个人健康（可能性高出9倍），是一个事实问题（可能性高出9倍），并且只有两个而不是多个回答类别（可能性高出17倍）时，网络调查的回答明显更有可能同意RDD的回答。对于三个问题，当合并相邻类别的多类别问题时，显著差异变得不显著。事实性问题也往往是有两个而不是多个回答类别的问题。需要更多的研究来更清楚地分离这两个因素的影响。
authors conducted a large-scale survey about health care twice, once as a web and once as a random digit dialing (RDD) phone survey. The web survey used a statistical technique, propensity scoring, to adjust for selection bias. Comparing the weighted responses from both surveys, there were no significant response differences in 8 of 37 questions. Web survey responses were significantly more likely to agree with RDD responses when the question asked about the respondent's personal health (9 times more likely), was a factual question (9 times more likely), and only had two as opposed to multiple response categories (17 times more likely). For three questions, significant differences turned insignificant when adjacent categories of multicategory questions were combined. Factual questions tended to also be questions with two rather than multiple response categories. More study is needed to isolate the effects of these two factors more clearly.