Anybody who’s been a while in the job market has probably been asked, at some point, to take a Myers-Briggs personality test, which determines which of sixteen personality types you are. The Myers-Briggs system is based on the theories of Carl Jung and posits four axes of human personality, each axis with two opposed poles: Extroversion-Introversion; Sensing-oNntuition; Thinking-Feeling; Judging-Perceiving. The test subject is assigned a number placing himself/herself along each axis and then assigned a four-character “personality type.” (I’ve been tested as an INTP-INFP split.) See http://en.wikipedia.org/wiki/Myers-Briggs_Type_Indicator; http://en.wikipedia.org/wiki/Personality_psychology; and the website of the Center for Applications of Psychological Type, http://www.capt.org/.
The system certainly seems to have had widespread influence – it’s like astrological signs, only more scientific (or perhaps “scientific” – that’s the question of this thread). Like, “Hey, baby, what’s your Myers-Briggs?” Paul D. Tieger and Barbara Barron-Tieger have published best-selling self-help books based on it, including Do What You Are (Little, Brown, 2001), a guide to finding the career best suited to your personality type; and Just Your Type (Little, Brown, 2000), a guide to finding a type-compatible mate. (See Tieger and Barron-Tiegers website at http://www.personalitytype.com/.)
Only, the Myers-Briggs isn’t the only personality-typing system out there. For instance, there is the “enneagram,” a nine-type system based on the writings of the mystic G.I. Gurdjieff. See http://en.wikipedia.org/wiki/Enneagram; and the Enneagram Institute, http://www.enneagraminstitute.com/.
There’s also the VALS (Values and Life Styles) system – invented by the advertising industry as a target-marketing tool – which divides people into eight types, based on their level of “resources” and “innovation,” as well as how they relatively value “ideals,” “achievement” and “self-expression.” This system is based on demographic factors – education, income – as well as psychological ones. See http://www.sric-bi.com/VALS/types.shtml.
I once asked a clinical psychologist, at a party, what personality typing system is the most valid? He replied, none of them. They’re all pseudoscientific, with no practical value, clinical or otherwise.
What’s the Straight Dope? Are any of these personality typing systems any more valid than the twelve signs of the Zodiac or the medieval system of the four humours?