id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
0v838052034	Ge Jiang	Ridge Methods for Confirmatory Factor Analysis of Ordinal Variables	1904		.txt	text/plain	200	4	8	This dissertation has three major aims: (1) obtain a better formula for the optimal tuning parameters in rGLS methods; (2) correct the performance of sandwich-type standard errors to make them closer to empirical standard errors; and (3) improve the Type I error control of corresponding test statistics by rescaling their means to the degrees of freedom of their nominal chi-square distributions. The idea of the empirical modeling approach is to first conduct a simulation study in a wide variety of conditions, and collect parameter estimates/test statistics/standard errors for every condition; then compare these empirical results with their theoretical counterparts (e.g., compare parameter estimates with the population values used in the simulation study, compare sandwich-type standard errors with the empirical ones, and refer test statistics to their nominal chi-square distributions); if these statistics do not perform as expected in this simulation study, the empirical modeling approach can be employed to correct their behavior based on simulation results.	cache/0v838052034.txt	txt/0v838052034.txt