[英文释义] Systematic gathering of data for a particular purpose from various sources,including questionnaires,interviews,observation,existing records,and electronic devices. The process is usually preliminary to statistical analysis of the data.
Two randomized response techniques for investigating the quantitative characteristic of sensitive question the randomized response technique ( rrt ), which was originally developed for qualitative purposes, is being developed for quatitative purposes which is more complex 随机化回答技术最初是用于调查敏感性问题的属性特征而提出的,后来被发展运用到调查更复杂的数量特征中来。
Two randomized response techniques for investigating the quantitative characteristic of sensitive question the randomized response technique ( rrt ), which was originally developed for qualitative purposes, is being developed for quatitative purposes which is more complex 随机化回答技术最初是用于调查敏感性问题的属性特征而提出的,后来被发展运用到调查更复杂的数量特征中来。
In the 1970's, greenberg et olproposed some randomized response techniques for investigating the quantitative characteristic of sensitive question . in this article, we discuss two main methods-the unrelated-question model and the random amputation model . because the latter is more simple and convenient but ca n't protect the privacy of the interviewees very well, we suggest two modified methods baesd on it and make comparisons of them 在文章中我们讨论了其中两个主要的方法?无关问题模型和随机截尾模型。后者更加简便但却不能很好地保护回答者的隐私,因此我们在其基础上提出了两个改进的方法并对它们进行了比较。