Gengrui-Zhang/R2spa: An R package for two-stage path analysis (2S-PA) to adjust for measurement errors

`R2spa` is a free and open source R package that performs two-stage path analysis (2S-PA). With 2S-PA, researchers can perform path analysis by first obtaining factor scores and then adjusting for measurement errors using estimates of observation-specific reliability or standard error of those factor scores. As a viable alternative to SEM, 2S-PA has been shown to give equally-good estimates as SEM in relatively simple models and large sample sizes, as well as to give more accurate parameter estimates, has better control of Type I error rates, and has substantially less convergence problems in more complex models or small sample sizes.

install.packages("remotes")
remotes::install_github("Gengrui-Zhang/R2spa")