ISTJ
From Wikipedia, the free encyclopedia
ISTJ(Introverted Sensing Thinking Judging) is one of the sixteen personality types from personality type systems based on C.G. Jung, of which the best-known are the Myers-Briggs Type Indicator (MBTI), Keirsey Temperament Sorter, and Socionics.
Referring to Keirsey, ISTJs belong to the temperament of the guardians and are called "Inspectors".
In Socionics ISTjs belong to the club of the pragmatists, the beta Quadra, and are named "Inspector" or Maxim Gorky. Another notation for ISTj is LSI (which is an acronym for Logical-Sensory Intratim, referring to the cognitive functions)
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