Welcome!

The NNAT-2 is actually more highly-regarded in testing circles than the OLSAT. It also has norms that are 9 years more current.

We haven't needed formal testing for our children, as we homeschool, (and I'm an assessment professional, so I have a pretty good idea without it,) but I'm sure you'll hear from many others on here on their experiences having their children tested.

...pronounced like the long vowel and first letter of the alphabet...