体育活动研究中的经验抽样方法研究:因果推理的相关性
Louise Poppe1, Annick L De Paepe2, Benedicte Deforche1
1Department of Public Health and Primary Care, Ghent University, Ghent, Belgium.
概括
鉴定阶段对于确定经验采样方法 (ESM) 研究中的因果关系至关重要. 使用定向非循环图 (DAG) 可视化因果关系有助于解决体育活动研究中的混偏见.
科学领域:
- 健康和行为科学中的方法学.
- 在观察性研究中的因果推断.
背景情况:
- 经验采样方法 (ESM) 或生态瞬间评估越来越多地用于体力活动研究.
- 虽然ESM提供了变量的时间分离,但它本身并没有建立因果关系.
- 鉴定阶段对于定义因果估计和假设至关重要.
研究的目的:
- 为了说明识别阶段对于从ESM数据中得出因果关系结论的重要性.
- 证明因果定向非循环图 (DAG) 在指定因果效应和假设时的使用.
- 突出解决ESM研究中的混偏见的方法.
主要方法:
- 定义因果估计,并构建一个DAG体育活动和执行功能在老年人之间的关系.
- 利用文献审查和专家咨询来识别混因素.
- 描述物理和分析控制策略,以减轻混偏差.
主要成果:
- 定向非循环图 (DAG) 揭示了开放的后门路径,导致混偏差,即使有时间分离.
- 通过内部鼓励设计的身体控制可以解决偏见.
- 通过评估和调整混因素进行分析控制也很有效.
结论:
- 实施识别阶段可以提高ESM研究中的因果推理有效性.
- 研究人员可以通过明确指定因果关系和假设来做出更明智的决策.
- 这种方法加强了使用ESM数据回答因果关系问题的能力.
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