报告人: 吴琴
报告地点:腾讯会议
报告时间:2020年12月15日星期二15:00-16:00
邀请人:郑术蓉
报告摘要:
The Poisson Item Count Technique (PICT) is a survey method that was recently developed to elicit respondents' truthful answers to sensitive questions. It simplifies the well-known item count technique (ICT) by replacing a list of independent innocuous questions in known proportions with a single innocuous counting question. However, ICT and PICT both rely on the strong ``no design effect assumption'' (i.e., respondents give the same answers to the innocuous items regardless of the absence or presence of the sensitive item in the list) and ``no liar'' (i.e., all respondents give truthful answers) assumptions. To address the problem of self-protective behavior and provide more reliable analyses, we introduced a noncompliance parameter into the existing PICT. Based on the survey design of PICT, we considered more practical model assumptions and developed the corresponding statistical inferences. Simulation studies were conducted to evaluate the performance of our method. Finally, a real example of automobile insurance fraud was used to demonstrate our method.
会议ID:393 124 369
主讲人简介:
吴琴,香港浸会大学统计系博士毕业,现于华南师范大学统计系工作,讲师。曾主持国家自然科学基金项目一项,广东省质量工程项目一项。相关研究成果被统计杂志Statistical Methods in Medical Ressarch, Statistic in Medicine等杂志收录。