Description
Examine Measurement Invariance via Equivalence Testing and Projection Method.
Description
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>.
README.md
equaltestMI
This package includes a number of functions for users to examine measurement invariance via equivalence testing along with adjusted RMSEA cutoff values. In particular, a projection-based method is implemented to test the equality of latent factor means across groups without assuming the equality of intercepts.
Users can install the package from CRAN:
## load package
install.packages("equaltestMI")
library(equaltestMI)
or install the most recent version from the maintainer's GitHub repository:
# install.packages("devtools")
# library(devtools)
devtools::install_github("gabriellajg/equaltestMI", force=TRUE)
library(equaltestMI)