arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2109.09494stat.AP
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贝叶斯因子分析中似然均值的因子得分决定系数

Coefficients of factor score determinacy for mean plausible values of Bayesian factor analysis

André Beauducel, Norbert Hilger

摘要:

在贝叶斯因子分析的背景下,可以计算平均似然值,这些值可以用作协变量或预测变量,或者为贝叶斯潜变量提供个体评分。以前的模拟研究确定的合理值的有效性的合理值和生成因子得分的均方差。然而,在实证研究中,生成因子得分是未知的,因此需要一个仅基于模型参数的指标,以评估实证研究中因子得分估计值的有效性。确定性系数是基于模型参数的,并且可以在经验设置中执行贝叶斯因子分析时计算。因此,本模拟研究的主要目的是比较基于模型参数的确定性系数与平均合理值与生成因子的相关性。结果发现,系数的确定性产生一个可接受的估计平均合理值的有效性。对于小样本量和小显著负荷量,确定性系数高估了有效性,建议报告确定性系数和偏倚校正,以估计经验设置中平均合理值的有效性。

英文摘要:

In the context of Bayesian factor analysis, it is possible to compute mean plausible values, which might be used as covariates or predictors or in order to provide individual scores for the Bayesian latent variables. Previous simulation studies ascertained the validity of the plausible values by the mean squared difference of the plausible values and the generating factor scores. However, the generating factor scores are unknown in empirical studies so that an indicator that is solely based on model parameters is needed in order to evaluate the validity of factor score estimates in empirical studies. The coefficient of determinacy is based on model parameters and can be computed whenever Bayesian factor analysis is performed in empirical settings. Therefore, the central aim of the present simulation study was to compare the coefficient of determinacy based on model parameters with the correlation of mean plausible values with the generating factors. It was found that the coefficient of determinacy yields an acceptable estimate for the validity of mean plausible values. As for small sample sizes and a small salient loading size the coefficient of determinacy overestimates the validity, it is recommended to report the coefficient of determinacy together with a bias-correction in order to estimate the validity of mean plausible values in empirical settings.

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