So I came across this study on the 10 aspects of the Big Five. Basically, each of the 5 dichotomies can be subdivided into two aspects: Neuroticism = Volatility + Withdrawal, Extraversion = Enthusiasm + Assertiveness, Agreeableness = Compassion + Politness, Openness = Intellect + Openness, Conscientiousness = Industriousness + Orderliness.
Now, when I read about these, I was immediately reminded of the functions. I drew correlations like this: for extraversion, enthusiasm refers to ExxP and assertiveness refers to ExxJ; for agreeableness, compassion refers to xxFP and politeness refers to xxFJ; for openness, intellect refers to xNxJ and openness refers to xNxP.
Now, you can see in the article that the various aspects correlate with each other. Each aspect correlates with the aspect also under the same dichotomy, e.g. politeness with compassion. Intellect and assertiveness correlate (both J?), compassion and openness correlate (both P?) and enthusiasm and compassion correlate (both P?). What I would have expected, is for politeness and assertiveness to correlate, if my theory is correct, but instead they negatively correlate. Also, conscientiousness correlates strangely with each aspect - industriousness correlates with intellect and extraversion, whereas orderliness doesn't have much correlation (it is said that conscientiousness correlates with J characteristics, which I can't really see here).
Could I be right - that the Big 5 aspects are like the cognitive functions?
Oh, and one thing I don't like about Big 5 - it only really describes one side of the dichotomies, and defines the other as the negative of it. Like, you have traits that correlate to Feeling (i.e. agreeableness), but Thinking correlates to the lack of feeling. So we only have correlative aspects for Fi, Fe, Ni, Ne, not for, Si, Se, Ti, Te.
Here is a test for the aspects (as ISTJ, I happen to relate more to the assertiveness, politeness and intellect side of the aspects, i.e. my proposed "J" traits, and also to orderliness and withdrawal).