Hello, Doug. Yes, you can do this. Use the "==" qualifier on your Find request, like this:
beware of this though, if the old field was a checkbox there could be extraneous characters, such as extra line breaks where values were unchecked.
Best to do a self replace using List() to make sure and strip out any "blank" values
you could also do a multiple request search to omit any record that contains "junior"
Additional way cleaning up the list is replace with like
FilterValues ( List ( "primary" ; "junior" ) ; Self )
using current value list on leftside, remove any other values and "sort" values in the field if both checked.