Saving factor scores from grm

It would be helpful if you put your data into a format that's easy to reproduce.

Using something like dput or datapasta would be super helpful. If you're not familiar with how to do this already, check out Best Practices: how to prepare your own data for use in a `reprex` if you can’t, or don’t know how to reproduce a problem with a built-in dataset?

In terms of understanding your error message, check this out;

Personally, I don't like to view these kinds of reviews in the console. I use RStudio's IDE and when my data is in the form of a table, I view data in the source pain. That is, you might save this output to a variable, and then view that with the View() function.

If you get a reprex up and running I'd be happy to show you.