Common mistakes people make when studying MBTI:
MBTI: Descriptions of cognitive functions from various sources
Cognitive functions are not tools, skillsets, or behaviors that can be improved or learned. They are passive perspectives through which one perceives information. Think of yourself as a "photographer" and your mind as a "camera". The functions could be seen as different "colored filters". People of each type combines several of these colored filters (functions) to achieve a unique shade in which the world appears to them.
There is no such thing as being borderline J/P, T/F, or S/N. These are not sliding scales though some tests misrepresent them as so. These letters that compose the 4-letter type code are representative of an underlying order of cognitive functions. It is these cognitive functions that define the type. For example, valued cognitive functions of type INFJ are Ni,Fe,Ti,Se while cognitive functions of type INTJ are Ni,Te,Fi,Se. If you take a look at the middle functions of these two types they are different: Fe,Ti vs Te,Fi. What this means is that INFJs extravert their feeling and introverted logic, while INTJs extraverted their logic and introvert their feeling. Thus one cannot be a "borderline" INxJ type.
'J' and 'P' letters do not represent any cognitive functions in themselves. They stand for "Judger" and "Perceiver" which is decided by type's highest order extraverted function. All types that extravert a Je function (Fe or Te) as their dominant or auxiliary are Judging or J-types. All types that extravert a Pe function (Ne or Se) as dominant or auxiliary are Perceiving or P-types.
J/P letters do not operate on a sliding scale, thus you cannot be "borderline J/P". Types that differ in their last letter are completely different in their cognitive functions. Changing the last letter changes all
of the cognitive functions. For instance, INFJ's cognitive functional line-up is Ni,Fe,Ti,Se while for INFP's it is Fi,Ne,Si,Te. Even though their 4-letter codes differ only by the last letter, these two types share no
functions in common and are very different. In studying types, it is better to conceptualize them in