http://city-made.com/tag/chicago/ Peoplemaps is based on the psychology of Dr C.G. Jung – the Swiss psychologist who assesses that people could be identified by their ‘attitude’ to the outside world, which would either be extravert or introvert – and more often than not, somewhere in the middle of these two attitudes.
The ‘attitudes’ that are measured eg, intraversion V’s extraversion move along a bi-polar scale. These are partnered with a further two bi-polar scales that measure preferences or functions, both rational and irrational, which are thinking/feeling and sensing/intuition. These are combined to complete an individual’s type profile.
If the scale measures 100% and currently a person is using 40% introversion, this means they also use 60% extraversion. It’s worth bearing in mind that the measurement is taken at the time the individual completes the questionnaire; people do move along the scale usually in degrees, which means that their behaviour can change over time.
Jung measured the scales in combination to arrive at a TYPE rather than taking the measurement of personality traits. His view was that it didn’t matter how much introversion etc, a person had, but whether they had an overall preference. The combination of scales leads to a more certain personality type. It can be assumed from the scales that in any one day someone may be exhibiting, depending on their environment and other influences, more or less of a trait – but they are unlikely to change type on a day to day basis.