Examine Measurement Invariance via Equivalence Testing and Projection Method
Bootstrap procedure to test the equality of latent factor means using ...
Test the equality of two covariance matrices in population
The main function to test measurement invariance
Obtain noncentrality parameter of a chisquare distribution
Projection-based method for testing latent means equality
Obtain the RMSEA cutoff values for equivalence testing
Measurement invariance tests using lavaan
Functions for examining measurement invariance via equivalence testing are included in this package. The traditionally used RMSEA (Root Mean Square Error of Approximation) cutoff values are adjusted based on simulation results. In addition, a projection-based method is implemented to test the equality of latent factor means across groups without assuming the equality of intercepts. For more information, see Yuan, K. H., & Chan, W. (2016) <doi:10.1037/met0000080>, Deng, L., & Yuan, K. H. (2016) <doi:10.1007/s11336-015-9491-8>, and Jiang, G., Mai, Y., & Yuan, K. H. (2017) <doi:10.3389/fpsyg.2017.01823>.