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

Yinqiu He, Zi Wang and Gongjun Xu ()
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Yinqiu He: University of Michigan
Zi Wang: University of Michigan
Gongjun Xu: University of Michigan

Psychometrika, 2021, vol. 86, issue 2, No 4, 442-463

Abstract: Abstract 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.

Keywords: exploratory factor analysis; likelihood ratio test; Chi-square approximation (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s11336-021-09755-4

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