I read through the first dozen or so responses to this thread and had copied so many quotes to reply to, I just dumped them all and decided to post this instead.
First, the Hare Psychopathy Checklist is considered an industry standard in assessing psychopathy. You may accept it or not, but if you are on a parole board, a probation counselor, or work in the administration field of corrections, you better understand what the scores are and what they mean. The persons who score the interview (the PCL-R) are trained in not only how to administer the test, but how to score it. If a person is not trained in scoring the test, and an attorney subpoenas the administrator, the test is considered invalid. I was trained in how to administer and score the test.
Further, generally, the results of the psychopathy checklist are reviewed by another person who only reads the interview questionnaire and the file information. The results have to match. (I am fighting my own battle with a person who was trained the same as I was who seems to want to lower everyone’s score so she has a lower caseload. When I get her results reviewed, they usually match mine.)
Next, psychopaths don’t do well in war because they don’t do well with the discipline that most Soldiers accept as part of the job. I have heard the statistic that about 5% of the general population is psychopathic, less than 1% of the Military is psychopathic. Most would fail out or quit Basic Training because of the Irresponsibility factor and the Impulsive Factor.
According to Reid Malloy, a student of Dr. Hare, there is (or was) a purpose to psychopaths surviving in the human society. Psychopaths have what he calls “predatory acuity.” That is, psychopaths have an innate ability to spot the weakest member of a herd and target that individual. When hunting Mammoths on the plains or fighting for the ability to reproduce with the fertile female in the earliest days of humankind, this would be an advantage. In the current age, this is a longer sentence in a max custody section.
In short, you may see some psychopathic traits in yourself, or with some other people you meet or read about, but unless the person has been through the ten hour screening and interview process, you are not going to get a valid assessment of psychopathy.
SFC Schwartz