what would you be primarily testing for?
On my part, i suppose i'd be examining either for appearance of rare behavior (eg people who go insane and do a routine, including rare actions such as focusing on obscure things), or have some mental pattern complexity assessment to make (eg thoughts or progressions considerably above x complexity, with x being a standard or typical for the species).
It doesn't matter if you have tentacles, pseudopods or tens of eyes, but better keep the thread relatively clean from the mundane sexual 'Grays' probing