Psychometric analyses aligned with FDA COA Division Guidance 3 & 4.
You can install the released version of COA34 from github using the devtools R package. Note that you may need to install Rtools40 on your machine. I have found that the instructions available here to be straightforward: https://cran.r-project.org/bin/windows/Rtools/.
After installing Rtools40, do the following to install COA34 from github:
install.packages('devtools')
library(devtools)
devtools::install_github("CJangelo/COA34")This package won’t be released to CRAN, but this github repository will be updated due to how frequently me and my team use these functions.