动态结构方程模型中的测量模型错误规范:功率,可靠性和其他考虑因素
Hyungeun Oh1, Michael D Hunter1, Sy-Miin Chow1
1Department of Human Development and Family Studies, The Pennsylvania State University, University Park, PA 16802.
动态结构方程模型 (DSEM) 中的测量误差会导致显著的参数偏差,即使可靠性很高. 仔细的模型规范对于准确分析密集的纵向数据 (ILD) 是至关重要的.
科学领域:
- 心理测量 心理测量 心理测量
- 量化心理学 量化心理学
- 统计建模 统计建模
背景情况:
- 动态结构方程模型 (DSEM) 是强大的强度纵向数据 (ILD).
- 在DSEM中测量结构错误规格的影响尚未得到充分理解.
- 可靠性和模型复杂性可能会影响DSEM结果.
研究的目的:
- 调查DSEM中测量错误和错误规格的影响.
- 评估可靠性条件和模型复杂性如何影响参数估计.
- 为DSEM设计和分析提供实际建议.
主要方法:
- 进行蒙特卡罗模拟,以评估在错误规格下DSEM的性能.
- 不同的可靠性条件,参与者数量和时间点.
- 单指标和多指标DSEM测量结构的比较.
主要成果:
- 忽略测量错误导致了严重的动态参数偏差,无论可靠性如何.
- 增加了样本大小和时间点,减少了但没有消除偏差.
- 具有复合分数的单指标DSEM的性能类似于多指标DSEM.
结论:
- 测量错误规范是DSEM中的一个关键问题,导致动态参数偏差.
- 设计选择,包括指标的数量,显著影响DSEM的结果.
- 提供了建议和工具,以提高DSEM可靠性和功率分析.
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