There's a disclaimer at the end of the article, right below the "test": > Note: The Dark Core Scale was adapted from the larger test battery. I selected the it

There's a disclaimer at the end of the article, right below the "test": > Note: The Dark Core Scale was adapted from the larger test battery. I selected the items on an ad-hoc basis for entertainment purposes, but I do not recommend using the scale to make any sort of diagnosis. The author is a well respected psychology researcher, teaching at Penn, etc.