having met a few times Andrew...where do I stand? Answer in a pm please 
Now there's a question.
My being interested in what makes others tick, is largely due to the fact that I find it so difficult to do so.
The test ain't that great anyway, because it does not say at which point in the spectrum a high or low score is. Is 50% normal, or 0% normal? It's a bit of a how long is a piece of string type test.
The lack of empathy that is typically associated with being high on the psychopathy spectrum, is (IMHO) largely due to being unable to "read" people.
I (probably) won't start trying to skin you, because I find you trapped under something heavy, but at the same time, my first instinct will not be to try and and un trap you. I'm more likely to wonder how you became trapped. Obviously, I'm not that daft that I'm going to walk away and leave you there, but, unlike someone for whom empathy is a natural emotion, I will untrap you, totally oblivious to your wails of agony. They won't distract me at all, They won't even register with me. Neither will your heartfelt thanks when you finally crawl away. I'll give my best attempt at freeing you, because that is the "right" thing to do.
That's putting it a little strongly, but my mind works on logic and action, not emotion. It's a spectrum, it's not absolute, I feel bad about running over bunnys when I could have missed them. I'm quite happy to shoot them........
Based on the (tiny) bit I (think) I know about you, and the fact that you asked, I would say you score.......