arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2008.06596math.STstat.TH
收藏

关于高维探索性因子分析中似然比检验的一个注记

A Note on the Likelihood Ratio Test in High-Dimensional Exploratory Factor Analysis

Yinqiu He, Zi Wang, Gongjun Xu

AI总结:

本文研究高维探索性因子分析中似然比检验卡方近似失效的问题,推导其保持有效的充要条件,并给出实践可用的定量判断准则。

摘要:

似然比检验在探索性因子分析中被广泛用于评估模型拟合度并确定潜在因子的数量。尽管该检验广受欢迎且具有清晰的统计学依据,但研究人员发现,当响应数据的维度相对于样本量较大时,似然比检验统计量的经典卡方近似往往会失效。从理论上讲,随着数据维度增加,这种现象何时发生一直是一个悬而未决的问题;从实践角度看,高维性在探索性因子分析中的影响较少受到检验,并且关于传统卡方近似的有效性缺乏清晰的统计学指导原则。为解决这一问题,我们研究高维探索性因子分析中似然比检验卡方近似的失效问题,并推导确保卡方近似有效性的充要条件。这些结果给出了实践中可检查的简单定量指导原则,也将为探索性因子分析的实践提供有用的统计学洞见。

英文摘要:

The likelihood ratio test is widely used in exploratory factor analysis to assess the model fit and determine the number of latent factors. Despite its popularity and clear statistical rationale, researchers have found that when the dimension of the response data is large compared to the sample size, the classical chi-square approximation of the likelihood ratio test statistic often fails. Theoretically, it has been an open problem when such a phenomenon happens as the dimension of data increases; practically, the effect of high dimensionality is less examined in exploratory factor analysis, and there lacks a clear statistical guideline on the validity of the conventional chi-square approximation. To address this problem, we investigate the failure of the chi-square approximation of the likelihood ratio test in high-dimensional exploratory factor analysis, and derive the necessary and sufficient condition to ensure the validity of the chi-square approximation. The results yield simple quantitative guidelines to check in practice and would also provide useful statistical insights into the practice of exploratory factor analysis.

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。

↑