In assessing the different personalities of my subjects I used the Myers-Briggs Type Indicator (MBTI). It is a psychometric questionnaire developed by Katharine Cook Briggs and her daughter Isabel Briggs Myers under the influence of Carl Jung’s Theory of Temperaments.
Attitudes: extraversion/introversion (E/I)
Myers-Briggs literature uses the terms extraversion and introversion as Jung first used them. Extraversion means "outward-turning" and introversion means "inward-turning". These specific definitions vary somewhat from the popular usage of the words. Note that extraversion is the spelling used in MBTI publications.
The preferences for extraversion and introversion are often called "attitudes". Briggs and Myers recognized that each of the cognitive functions can operate in the external world of behavior, action, people, and things ("extraverted attitude") or the internal world of ideas and reflection ("introverted attitude"). The MBTI assessment sorts for an overall preference for one or the other.
Functions: sensing/intuition (S/N) and thinking/feeling (T/F)
Jung identified two pairs of psychological functions:
The two perceiving functions, sensing and intuition
The two judging functions, thinking and feeling
According to Jung's typology model, each person uses one of these four functions more dominantly and proficiently than the other three; however, all four functions are used at different times depending on the circumstances.
Sensing and intuition are the information-gathering (perceiving) functions. They describe how new information is understood and interpreted. Individuals who prefer sensing are more likely to trust information that is in the present, tangible, and concrete: that is, information that can be understood by the five senses. They tend to...