Originally Posted by aculady
Your best bet is probably to just pick up book of practice tests for each one (available at most bookstores and at Amazon) and let her have a go at both under conditions that are as similar to real testing conditions as you can manage (quiet, timed, etc.) That will give you a feel for which test and format she is more comfortable with, and will make the real thing a little less intimidating.

I agree. Great advice.