Not a bad idea, although the data may still not be as hard as you'd hope for.

If people fail to get typed correctly by tests for different reasons, like failing to have an objective view of themselves and their qualities. Or instead of answering how they are, answering with how they wish they'd be, based on the twisted view they have of themselves (it happens). How do you expect people to accurately answer the questions in your test?

Not to mention there are people with a peculiar form of humor that will give false answers on purpose to meddle with your survey results.

And yeah, of course that can also happen with questions asked in a place like this sub. It's sad that actual 100% correct data is just rarely, if ever, available because of issues like those.