SEM - Standar Error of measurement

[gvt]

Some option to calculate SEM (Standard Error of Measurement)?
https://us.humankinetics.com/blogs/exce ... easurement

I can see some package like this, but I can´t find how report SEM: https://cran.r-project.org/web/packages ... /news.html

[gvt]

Finally find it! It´s on tab Relianility analysis.