在存在网络成员错误分类的情况下,对自我中心网络随机试验中的因果溢出效应的估计和推断
Ariel Chao1,2, Donna Spiegelman1,2, Ashley Buchanan3
1Department of Biostatistics, Yale School of Public Health, 60 College Street, New Haven, CT, 06510, United States.
Biostatistics (Oxford, England)
|March 30, 2025
概括
本研究引入了一种新方法,用于准确测量同行网络中的干预效应,纠正网络数据中的错误. 这确保了行为干预措施的更可靠的结果,旨在实现全人口的变化.
科学领域:
- 流行病学 流行病学
- 社交网络分析 社交网络分析
- 因果推理因果推理
背景情况:
- 行为干预通常使用同行网络来影响行为.
- 自我中心网络随机试验 (ENRTs) 评估这些策略,重点关注平均溢出效应 (ASpE).
- 准确测量社交网络对于公正的ASpE估计至关重要,但网络往往被误测.
研究的目的:
- 在网络数据被错误分类时,开发ENRT中ASpE估计的偏差校正方法.
- 在基于网络的研究中解决对准确干预效应评估的关键需求.
- 提高公共卫生干预评估的可靠性.
主要方法:
- 综合测量误差和因果推理技术.
- 开发了一种用于ASpE的偏差校正方法,使用代理和验证网络数据.
- 通过广泛的模拟和现实研究 (HPTN 037) 调查方法性能.
主要成果:
- 拟议的方法有效地纠正因ENRT网络错误分类引入的偏差.
- 模拟研究表明了有限样本特性和偏差校正方法的准确性.
- 这些方法使用HPTN 037研究的数据成功地说明了这些方法.
结论:
- 即使有网络错误分类,也可以准确估计ENRT中的平均溢出效应.
- 开发的偏见纠正方法对于评估基于网络的行为干预措施的真正影响至关重要.
- 这项工作为分析涉及社交网络和行为变化的研究数据提供了强大的框架.
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