• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Survey methodology >An assessment of accuracy improvement by adaptive survey design
【24h】

An assessment of accuracy improvement by adaptive survey design

机译：通过自适应调查设计评估准确性提高

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

High nonresponse occurs in many sample surveys today, including important surveys carried out by government statistical agencies. An adaptive data collection can be advantageous in those conditions: Lower nonresponse bias in survey estimates can be gained, up to a point, by producing a well-balanced set of respondents. Auxiliary variables serve a twofold purpose: Used in the estimation phase, through calibrated adjustment weighting, they reduce, but do not entirely remove, the bias. In the preceding adaptive data collection phase, auxiliary variables also play a major role: They are instrumental in reducing the imbalance in the ultimate set of respondents. For such combined use of auxiliary variables, the deviation of the calibrated estimate from the unbiased estimate (under full response) is studied in the article. We show that this deviation is a sum of two components. The reducible component can be decreased through adaptive data collection, all the way to zero if perfectly balanced response is realized with respect to a chosen auxiliary vector. By contrast, the resisting component changes little or not at all by a better balanced response; it represents a part of the deviation that adaptive design does not get rid of The relative size of the former component is an indicator of the potential payoff from an adaptive survey design.
机译：如今，许多抽样调查（包括由政府统计机构进行的重要调查）中都出现了很高的不答复率。在这些情况下，自适应数据收集可能是有利的：通过生成一组均衡的响应者，可以最大程度地降低调查估计中的无响应偏差。辅助变量具有双重目的：在估计阶段使用，通过校准的调整权重，它们可以减少但不能完全消除偏差。在前面的自适应数据收集阶段，辅助变量也起主要作用：它们有助于减少最终受访者之间的不平衡。对于此类辅助变量的组合使用，本文研究了校准估计值与无偏估计值（在完全响应下）的偏差。我们表明该偏差是两个分量的总和。如果针对所选辅助矢量实现了完美的平衡响应，则可通过自适应数据收集将可减少的分量降低到零。相比之下，抵抗成分通过更好的平衡响应几乎没有改变或完全没有改变。它代表了偏差的一部分，自适应设计无法消除。前一部分的相对大小是自适应勘测设计潜在收益的指标。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号