Yes, it is good enough for IQ scores, yes, it is a bit outdated, maybe, on selecting a different test. It's a decent test, just a little old. If you just want information about overall ability, you will probably get enough information from it. If you will need it for access or advocacy purposes in the future, it's hard to say. It probably will be sufficient for that, but it will depend on the institution.

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