"How dreadful!" cried Lord Henry. "I can stand brute force, but brute reason is quite unbearable. There is something unfair about its use. It is hitting below the intellect." ~ Oscar Wilde - The picture of Dorian Gray
Having 100% preference implies that concrete measurement is possible, which it is not. I doubt there is such a thing as actually using more of one than the other; just how much the person taking the questionnaire values their preference (or is confident enough in MBTI lingo to know which questions are for what).
100% Judging or 100% perceiving would mean that you either judge with no information or are nothing but information storage. You can't judge without taking information in in some manner and you can't survive without making some decisions. While there technically is the possibility for 100% of either J/P it's not possible in humans or any form of life.
Ne > Ti > Si >> Te > Se >> Fe > Fi > Ni
I don't think there are really many characteristics out there that ACTUALLY fully describe ONLY J/P characteristics. However, I do think the J/P dichotomy is more or less 100% either way. Functionally, a J always extroverts judgment of some sort and introverts perception of some sort; likewise, a P always extroverts perception of some sort, and introverts judgment of some sort.
As a digression, I don't think a sliding scale is an acceptable way of looking at Myers Briggs simply because of the functional theory behind the dichotomies. Try to think instead of using various degrees of preference for different functions, of which everyone has four. Each Myers Briggs type has intuition, sensing, feeling, and thinking; the definitive characteristics lie in how much preference is given to each, and in what attitude the function lies (introverted or extroverted). As an example, ESTP's who give a high priority to feeling aren't just EStP's (barely T), they just give a higher than normal favoring of Fe in certain situations. They use all functions; the P and J simply determine the attitudes. So ESTP's would use Se --> Ti --> Fe --> Ni and ESTJ's would use Te --> Si --> Ne --> Fi. The functions are completely different with just one letter switched. So do you see how P and J can't really (theoretically and in most real cases) be close on a sliding scale?
Last edited by incubustribute; 12-07-2009 at 03:14 PM.
Reason: fixed a word I didn't mean to type.