This is not a test for diagnosing people as psychopaths. It is, rather, a test for you, if you are in a relationship that feels confusing, and unpleasant. If the person you are living or working with sends you conflicting vibes: ecstatic to be in this relationship, being put on a pedestal on one hand, and being thrown into the ditch on another.
Sometimes it helps victims of abuse to have a name for it. Sometimes it could just be that the other person is being him/herself, and you have your own unresolved psychological issues. Whatever your reason may be, if you are here to use this test, I hope it is insightful.