You think? Well, hades. I think I can safely bank on NT but ni ne ti te...This one is a dingbat. Friend of the family that helped rear me would swear I am NT as well but was too tired to dissect further.
Tilty has now explained ne and ni to me in terms that makes it pretty clear that I work with ni. That narrows it right back down to the one I always end up back with. But I think talking to a knowledgable INTJ can't be a bad thing. Insight.
Maybe you should ask [MENTION=9310]uumlau[/MENTION]! He's an INTJ with great knowledge of cognitive functions.
INTJs and INFJs are pretty darn close, with INFJs being "nicer" if still very reserved. If you're sure you're working with Ni, it might help to read up on some Ni threads. There are one or two recent ones that are pretty good.
One problem for INxJs is that men will tend to type as INTJs, but when you look at their interaction style, they're trying to get group consensus, check on whether everyone is happy, etc. Similarly, the women will tend to type as INFJs, because they're in careers that can seem atypical of INTJs. I know one female INTJ that's a therapist for kids ... but there's a harsh bluntness there that is atypical of INFJs.
So, one indicator of being INTJ over INFJ for women is that extra harshness, or perhaps some "masculine" personality traits in terms of a sort of forcefulness of personality that is quite normal for an INTJ but not so normal for an INFJ.
Another indicator is thinking and talking in terms of things and facts, of accomplishing tasks, of logistics, of getting things done in an efficient and effective way. INFJs want to be similarly effective, but it's predominantly in terms of people and people-systems, not material or objective systems.
In terms of functions, one would try to look for Te/Fi vs Fe/Ti in the function order. This is one of those things that is fairly difficult to ascertain without a prolonged exposure to the concepts and seeing them play out in people. There are multiple Fe vs Fi threads on the forum that highlight these differences. The main difference is that the "i" functions are considered private and personal, and only indirectly and tentatively shared. The "e" functions are generally open and communicated with others. Thus Fe tends to communicate in terms of feeling and Te tends to communicate in terms of thinking. Fe tends to incur difficulty with Fi because it tries to communicate in terms of what Fi regards as private. Te tends to incur difficulty with Ti because it communicates in terms of what Ti regards as private.
Note that "Feeling" has nothing to do with "how emotional" you are. INTJs are
very emotional, and very emotionally intense, but it's entirely under the hood. The death stare is that odd combination of being emotionally intense, but hiding it behind a cold, logical exterior. Women tend to soften these harder INTJ edges, whether due to socialization or biological considerations. So you need to look at the
quality of the emotions and emotional expression, not the quantity.
A good litmus test is to just follow threads and arguments on typology forums, and whose arguments you tend to follow most easily. Both INTJ and INFJ statements will seem to be sensible, but one style will make a lot more sense than the other. Also check and see if xNTPs make more sense to you than INTJs: INFJs will be more receptive to the xNTP's Ti than INTJs.
I hope this helps.