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Myers Briggs


The Myers Briggs Type Indicator or Personality Inventory is probably the best known psychometric instrument in the world. It has become a key resource in Leadership Development work and is the preferred diagnostic tool of the widely respected US Centre for Creative Leadership.

Myers Briggs Step II, which LeaderShape recommends for use in its programmes, brings an extra level of diagnosis to this valuable tool. It acts as a good introduction into the journey of “Self-Awareness" which is a critically important aspect of leadership development.


The MBTI instrument can only be administered by rigorously trained specialist practitioners, who have undergone an intensive course with Oxford Psychologists Press(OPP), the exclusive European licencee. All MBTI practitioners are listed on a Register, abide by the British Psychological Society code of conduct in giving any person profiled a full feedback report and only they have access to MBTI written materials or the online facility introduced in 2005.



Developed originally in theoretical form in the early years of this century by the Swiss psychoanalyst, Carl Jung(1875-1968) - one time colleague of Sigmund Freud, it was further adapted between 1923 and 1941 by Katherine Briggs(d.1968) and subsequently her daughter Isabel Myers(d.1980).  Between 1942 and 1956 the Indicator became an instrument which could be used on a more general basis for personality profiling.It has been the subject of over 4000 research papers and is taken as a Personality Profile indicator by over 3 million people a year worldwide. More has been written about the MBTI almost certainly than all other similar or derived instruments put together.


Diagnostic impacts

MBTI (Step 1) addresses four different types identified by Jung and the Myers Briggs team. It assesses our preferences for energising ourselves, acquiring information, acting on this and finally how we operate in terms of lifestyle. Jung saw these 8 preferences as bipolar scales (or dichotomies):

  •      Extrovert(E) vs Introvert(I)
  •      Sensing(S) vs Intuition(N)
  •      Thinking(T) vs Feeling(F)
  •      Judging(J) vs Perceiving(P)

After much research across different cultures, he was convinced that they were genetic and so, if they could be accurately identified, they would give tremendous insight into a person’s basic and unalterable character. Clearly this has major implications both for awareness of self and of others and is invaluable in developing team harmony. Recognition and leveraging of known differences and preferences between individuals can have powerful implications. Marks and Spencer has used Myers Briggs (Step 1) as a base diagnostic for leadership and team development in many areas of the business.

MBTI (Step 2) goes further in identifying five additional sub factors for each preference. This work was done by Myers’ son, Peter and a psychometrician called David Saunders who worked with Myers for 25 years.  For the main preference of Thinking, the Sub-Facets are Logical, Reasonable, Questioning, Critical and Tough. This provides extra clarity and allows subtlety. The rigid perceived definitions of Step 1 acquire more depth and what at first sight may appear to be a clear difference between individual Types can reveal closer behavioural links. MBTI(Step 2) is more complex to appreciate and requires skilled and experienced debriefing.




Do you understand the difference between these disciplines?  Answer our questionnaire and with your score you get a free report explaining all!