Thanks for the responses. Like most of the tests, all of you typed me as an ISTJ. I think that's probably my correct type. Based on researching some more, I've realized that I can identify with everything that is used to describe ISTJs (more or less), but, while I strongly identify with some parts of descriptions for INTJs, I also strongly disagree with other parts.
I guess I'm an ISTJ with a strong/well developed N, which seems to put me in
good company.