I found it was possible to get (at least) three different results on the test for myself, just based on the different random question selections and slight variations in my attitude about how to interpret certain wordings. Every answer I gave was true, within the limits of the test. (BTW, you can refuse to answer some questions and you’ll still be sorted.)
Granted, I am vast and contain multitudes. Others may be easier to pin down. But it sure doesn’t give me any confidence in the methodology.