Those types of psychology questions are not written based on narc (or other condition) behavior.
The test is written and then a bunch of guinea pigs take the tests. Included the collection of subjects taking the test are diagnosed people. Then statistics are used to figure out how different conditions answered the questions. So no trick questions only arbitrary.
There used to be the MMPI ( Minnesota Multiphasic Personality Index ) that was first pass at diagnosing a patient. It was comprised of a bunch of meaninglessness questions.
Example
I am afraid of spiders
I like spiders
I dont like spiders
I think spiders are cool....
Those questions were not there to ID aracnaphobianaphobia. They were arbitrary. An individuals answers where compared with diagnosed patients results to characterize the patient being tested. The results are not 100%. They are just a first guess.
When I was young and depressed (before God found me) I took the the MMPI. I came back as ...
A paranoid schizophrenic with psychotic tendencies.
"I got better"
When I told The Princess she asked "Am i safe alone with you?"
Please resume your talk about narcs.
Ben