<P> INFP (introversion, intuition, feeling, perception) is an abbreviation used in the publications of the Myers - Briggs Type Indicator (MBTI) to refer to one of sixteen personality types . The MBTI was developed from the work of the psychiatrist Carl G. Jung in his book Psychological Types . Jung proposed a psychological typology based on the theories of cognitive functions that he developed through his clinical observations . From Jung's work, others developed psychological typologies . Jungian personality assessments include the MBTI assessment, developed by Isabel Briggs Myers and Katharine Cook Briggs, and the Keirsey Temperament Sorter, developed by David Keirsey . </P> <P> INFPs are driven by a strong sense of right and wrong and a desire to exercise their creativity, even if only behind the scenes . Their weaknesses may include sensitivity to criticism, poor organization, and low assertiveness . Keirsey referred to the INFPs as Healers, one of the four types belonging to the temperament called the Idealists . INFPs are rare, accounting for about 4% of the population . </P>

What does the t stand for in infp-t