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相关概念视频

Surveys02:16

Surveys

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Often, psychologists develop surveys as a means of gathering data. Surveys are lists of questions to be answered by research participants, and can be delivered as paper-and-pencil questionnaires, administered electronically, or conducted verbally. Generally, the survey itself can be completed in a short time, and the ease of administering a survey makes it easy to collect data from a large number of people.
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Archival Research01:40

Archival Research

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Some researchers gain access to large amounts of data without interacting with a single research participant. Instead, they use existing records to answer various research questions. This type of research approach is known as archival research. Archival research relies on looking at past records or data sets to look for interesting patterns or relationships. For example, a researcher might access the academic records of all individuals who enrolled in college within the past ten years and...
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Types of Records II: Educational and Administrative Records01:18

Types of Records II: Educational and Administrative Records

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Maintaining nurses' educational and administrative records in healthcare settings, including hospitals and nursing schools, is paramount. Here's a breakdown of the types of academic records mentioned:
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Data Collection by Observations01:08

Data Collection by Observations

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Data collection refers to a systematic way of obtaining, observing, measuring, and analyzing accurate information. Observational studies are one of the most widely used methods of data collection. It involves collecting data by observing the behavior and physical characteristics of a sample without making any modifications to the sample.
An astronomer viewing the motion and brightness of stars in the sky and recording the data is an example of observational data collection. A botanist recording...
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Censoring Survival Data01:09

Censoring Survival Data

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Survival analysis is a statistical method used to analyze time-to-event data, often employed in fields such as medicine, engineering, and social sciences. One of the key challenges in survival analysis is dealing with incomplete data, a phenomenon known as "censoring." Censoring occurs when the event of interest (such as death, relapse, or system failure) has not occurred for some individuals by the end of the study period or is otherwise unobservable, and it might have many different...
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Stratified Sampling Method01:16

Stratified Sampling Method

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Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a stratified sample, divide the population into groups called strata and then take a...
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相关实验视频

Updated: Jun 7, 2025

Inverse Probability of Treatment Weighting Propensity Score using the Military Health System Data Repository and National Death Index
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使用行政记录改善调查推断,而不释放个人级持续数据

Sharifa Z Williams1,2,3, Jungang Zou1, Yutao Liu1

  • 1Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York, USA.

Statistics in medicine
|November 18, 2024
PubMed
概括

这项研究引入了一种新的两步方法,以减少因非响应导致的调查估计偏差. 通过利用机密的连续辅助数据来估计响应倾向,该方法提高了调查数据用户的统计推断的准确性.

关键词:
贝叶斯预测推理贝叶斯预测推理俄罗斯人 俄罗斯人连续辅助变量是连续的辅助变量.一般化的增材模型.包括性倾向的包括性倾向.在分层后的分层化过程中,

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科学领域:

  • 统计 统计 统计 统计
  • 调查方法 调查方法
  • 数据科学数据科学数据科学

背景情况:

  • 在概率调查中,不响应率的增加导致了偏见的统计推断.
  • 辅助信息可以减少估计偏差,但保密性问题往往会导致连续变量的离散,削弱它们的实用性.
  • 分散的辅助数据可能无法完全捕捉与调查结果的关系,限制了调查估计的改进.

研究的目的:

  • 提出一项新的两步策略,有效地利用机密的连续辅助数据来改进调查估计.
  • 为了应对辅助信息的弱化实用性的挑战,由于对机密性进行分密化.
  • 开发一种方法,以提高在高无响应率的调查中统计推断的准确性和效率.

主要方法:

  • 建议采用两步策略:统计机构使用机密的连续辅助数据来估计响应倾向得分.
  • 这些倾向分数被纳入数据用户修改的人口数据集.
  • 数据用户使用贝叶斯模型与分线,包括离散变量和倾向得分,用于预测调查推断.

主要成果:

  • 模拟表明,拟议的方法可以更有效地估计人口平均值.
  • 与替代方法相比,该方法可以更好地覆盖95%可信度间隔.
  • 该方法成功地使用俄俄州陆军国民警卫队心理健康倡议 (OHARNG-MHI) 数据集来说明.

结论:

  • 拟议的两步策略有效地利用机密的连续辅助数据,以减轻调查估计中的非响应偏差.
  • 该方法提高了统计推断的精度和可靠性,提供了更好的可信度间隔覆盖.
  • 开发的方法可以通过R包AuxSurvey访问,促进在调查研究中更广泛的应用.