I spent some time reviewing the keys2cognition test results in this long (350-post) INTJforum thread
for posters who type themselves (based on their profile info) as INTJ. Since I'm more of a "dichotomies" guy than a "functions" guy, it didn't exactly shock me to discover that the posted test results were a long way from what you'd expect if you subscribe to the most common cognitive functions model for INTJs — i.e., Ni-Te-Fi-Se. Instead, to the extent that there's any kind of typical pattern for an INTJ's cognitive functions — as reflected by Nardi's test
— it's more like this:
1. The totals
for the two N functions and the two T functions (i.e.
, Ni + Ne and Ti + Te) tend to be higher than the S and F totals — which is what you'd expect if Ni and Te are an INTJ's top two functions. But Ni is not
substantially favored over Ne (sometimes Ne is higher, and often the scores are very close); and, similarly, Te is not
substantially favored over Ti (sometimes Ti is higher, and often the scores are very close).
2. Where there's a significant difference, the T totals tend to be higher than the N totals (rather than vice versa
), which is not what you'd expect for a person with Ni as their "dominant" function — the one on which Jung focused almost exclusively in Psychological Types
— and Te as their "auxiliary" function. (I suspect that part of the explanation for this may be that, as is often the case with MBTI-related tests, a number of the N items on Nardi's test have a somewhat mystical/flaky flavor that make them more likely to appeal to NFs and/or NPs than NTJs.)
3. Where there's a significant difference, the S totals tend to be higher than the F totals (rather than vice versa
), which is arguably not what you'd expect given the way the tertiary and inferior functions are typically characterized.
4. Se is not
significantly favored over Si, which is arguably not what you'd expect from the standpoint of Se being one of an INTJ's "top four" functions and Si being one of the "shadow" functions. On the other hand, the inferior function (Se) is called "inferior" at least partly because it's viewed as the one of the top four most likely to be a weak spot that remains undeveloped or underdeveloped until (at best) later in life, so, especially with young
INTJs, maybe there's no reason to expect Se scores to be significantly higher than Si scores. But you would
expect Si scores to be low in absolute terms — both because Si is one of the bottom four ("shadow") functions and
because S is disfavored as between N and S. But, unlike Fe (discussed next), the Si scores for INTJs in that thread tend to be moderately high.
5. It seems to me that it's only
the F scores on the keys2cognition test that tend to be strikingly consistent with most cognitive functions theorists (including Nardi). The results for the majority of INTJs in that thread show reasonably good use of Fi (their tertiary function) and little or no use of Fe (one of the shadow functions).