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arXiv 1801.02400stat.ME
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二元数据隐类模型局部依赖估计的期望参数变化(EPC)

The Expected Parameter Change (EPC) for Local Dependence Assessment in Binary Data Latent Class Models

Daniel L. Oberski, Jeroen K. Vermunt

摘要:

二进制数据潜在类模型关键地假设局部独立性,违反局部独立性会严重地影响结果。我们提出了两个工具,用于监测本地依赖的二进制数据潜在类模型:“预期参数变化”(EPC)和广义EPC,估计可能的本地依赖的实质性的大小和方向。的措施的渐近和有限样本的行为进行了研究,和两个应用程序的美国人口普查估计西班牙裔种族和医学专家的评级的X射线证明其价值,在到达一个模型,平衡现实主义和吝啬。

英文摘要:

Binary data latent class models crucially assume local independence, violations of which can seriously bias the results. We present two tools for monitoring local dependence in binary data latent class models: the "Expected Parameter Change" (EPC) and a generalized EPC, estimating the substantive size and direction of possible local dependencies. The asymptotic and finite sample behavior of the measures is studied, and two applications to the U.S. Census estimation of Hispanic ethnicity and medical experts' ratings of x-rays demonstrate its value in arriving at a model that balances realism and parsimony.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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