Online surveys have the advantages of affordability and speedy collection; however, there have been some concerns about their response quality. Previous studies have measured response quality using nonresponse rate and biased choice behavior. However, it is difficult to detect defective respondents who are randomly selected without careful consideration by using those indicators. Therefore, this study measured the accuracy rate as an index of response quality using a questionnaire with questions for which possible answers were provided. Questionnaire length was found to have a negative effect on response rate but no significant effect on the accuracy rate. In addition, considering the response device, surveys from smartphone users have a lower accuracy rate than surveys from personal computer users. Lastly, respondents who have a response rate faster than 10 seconds per question have a lower accuracy rate. It is important to understand the factors that affect response quality and to design surveys accordingly.

在线调查具有可负担性和快速收集的优点；但是，人们对其响应质量存在一些担忧。先前的研究已经使用无响应率和偏向选择行为来测量响应质量。但是，使用这些指标很难检测出未经仔细考虑而被随机挑选出来的有缺陷的受访者。因此，本研究使用问卷对可能提供答案的问题进行测量，将准确率作为回应质量的指标。调查问卷的长度被发现对回应率有负面影响，但对准确率没有显着影响。另外，考虑到响应设备，来自智能手机用户的调查的准确率要低于来自个人计算机用户的调查。最后，每个问题的响应速度快于10秒的受访者准确率较低。重要的是要了解影响响应质量的因素，并据此设计调查。