Comparison of confirmatory factor analysis estimation methods on mixed-format data

Authors : Abdullah Faruk KILIÇ, Nuri DOĞAN

Pages : 21-37

Doi:10.21449/ijate.782351

View : 27 | Download : 9

Publication Date : 2021-03-15

Article Type : Research Paper

Abstract :Weighted least squares insert ignore into journalissuearticles values(WLS);, weighted least squares mean-and-variance-adjusted insert ignore into journalissuearticles values(WLSMV);, unweighted least squares mean-and-variance-adjusted insert ignore into journalissuearticles values(ULSMV);, maximum likelihood insert ignore into journalissuearticles values(ML);, robust maximum likelihood insert ignore into journalissuearticles values(MLR); and Bayesian estimation methods were compared in mixed item response type data via Monte Carlo simulation. The percentage of polytomous items, distribution of polytomous items, categories of polytomous items, average factor loading, sample size and test length conditions were manipulated. ULSMV and WLSMV were found to be the more accurate methods under all simulation conditions. All methods except WLS had acceptable relative bias and relative standard error bias. No method gives accurate results with small sample sizes and low factor loading, however, the ULSMV method can be recommended to researchers because it gives more appropriate results in all conditions.
Keywords : Bayesian estimation, Monte carlo simulations, CFA