@article{SU2008, 
author = {Jie SU and Peiji SHAO and Jiaming FANG},
title = {Effect of Incentives on Web-Based Surveys},
year = {2008},
journal = {Tsinghua Science and Technology},
volume = {13},
number = {3},
pages = {344-347},
keywords = {Internet, incentives, web-based surveys, material incentives, nonmaterial incentives, prepaid incentives, contingent incentives},
url = {https://www.sciopen.com/article/10.1016/S1007-0214(08)70055-5},
doi = {10.1016/S1007-0214(08)70055-5},
abstract = {Investigators seek ways to effectively raise the response rate of surveys. Incentives have a great influence on response rate, retention rate, and response quality in traditional surveys. The purpose of this paper is to investigate what kinds of incentives are effective in web-based surveys. This study summarizes the research framework of previous studies on the effect of incentives in web-based surveys to show that material incentives have a significant effect on web-based surveys with prepaid incentives having a moderate influence on raising the response rate. Contingent incentives significantly reduce the response rate. These findings provide guidance for web-based investigations.}
}