Okay, this one surprised me a little until I started reading more about it. I'm an ISFP, which means Introvert, Sensing, Feeling, Perceiving. As you can see below, I don't have strong tendencies in any of the categories
I fully expected to be an extrovert because I can have conversations with anyone and have never really felt "shy"; however, introversion doesn't necessarily refer to being outgoing. The questions in the test seemed to talk more about how I felt when I was around large crowds, whether I would rather have fewer friends, stay home versus go out, etc. I'm definitely a homebody, and I don't feel energized by large social gatherings, so I think that's where the introversion came in.
I read more about these traits here and here. I think these sites were really insightful into some aspects of my personality, such as why I didn't like taking online classes! Is there anyone reading who actually knows me and would like to comment on my perception versus my actual personality?