That article states that Trump is on par with Hitler. Sounds about right.
Have you ever even taken a PPI-Revised? I have, and I doubt Trump ever has. Even if he had, I am positive it would never have been leaked to the press. On top of that, these weren't even developed at the time Hitler was alive. IOW, it is all fantasy. They have someone answering for Trump and Hitler. They aren't even putting this in historical or event related context.
So some liberal/progressive egghead is answering questions for Trump and Hitler, imagining how they might respond, to questions like this, on a scale of five choices;
Here is a sample;
Levenson Self-Report Psychopathy Scale
"Disagree ---->Neutral--------> Agree
Success is based on survival of the fittest; I am not concerned about the losers.
I find myself in the same kinds of trouble, time after time.
For me, what's right is whatever I can get away with.
I am often bored.
In today's world, I feel justified in doing anything I can get away with to succeed.
I find that I am able to pursue one goal for a long time."
Those are subjective scores you dingbat.
It is the content of the article that is important. Not the fact that some egghead thinks that Trump has higher or lower scores than Hitler in some arbitrary categories. Frankly, they are probably off their rocker by most people's gauge.
Generally this scale is based on not only observation, but self reporting as well. As most of this is done by only observation of current politicians, but also subjective interpretation of historical documents, none of this is very hard and fast.
Let's just take the first indicators, shall we?
"
The first three traits—social influence (SI), fearlessness (F) and stress immunity (STI)"
or
Psychopathic Personality Inventory - Wikipedia
Of these traits, it has Trump scoring higher than Hitler. By whose measure?
Certainly Hitler had more social influence, we all know that. Likewise, Hitler was physically involved in political brawls, and he fought in the trenches of WWI. Can anyone imagine Trump even in basic training?
As far as stress immunity, I'm not sure either was/is very immune to stress. With Trump, I don't think we will ever know, he has been pampered his whole life, practically immune from stress.
And with Adolf? Well, he went through the fires of hell, and. . . well, obviously cracked. Being rejected and bullied as a child, refused from art school, exposed to chemical warfare, and then thrown in prison, probably warped his mind more than Trump being dealt some lousy business blows.
So I couldn't tell you what crack-pot is handing out these subjective scores to make their case, I really couldn't. Apparently they are roughly based on a system that is used in equivalent to known cases? I can't imagine how. If we are interested and want to know, we must pay?
The point here is, Hillary is not much better on this scale.
One has to answer radically to really push the envelope to score at the fringes of the bell. Usually 0 and 180 are your max points, 90 is the median. It works the same for IQ.