As a standard psychological instrument, the MBTI is of little use - it’s on average not reliable. [iMost* people who retake the test often get different results, often within as little as a few weeks; I’ve taken the actual real one three times (several years apart) and have gotten different results each time. It has also low validity - there’s no way to confirm the concept of the constructs measured. Myers and Briggs didn’t exactly adhere to modern research standards when setting up their personality types; they based them on Carl Jung’s archetypes, which aren’t really based on empirical research, either. Research shows that people aren’t really hard categorized into introversion vs. extraversion, for example - like most other things in life, people are normally distributed across the spectrum. (This is my MBTI problem; I always score square on the line between I and E.) As that Psychology Today article mentions, there’s no evidence that the poles for some of the categories are actually opposing - thinking and feeling aren’t opposite ends of a spectrum.
Also, I’m a psychologist by training, so it’s pretty easy to game the test into giving me the result I want if I try.
It’s super fun, though! I love personality tests.
I’m an ESTJ. I went to Spelman College (a small, historically black college for women) and I majored in psychology.
FWIW, the first time I took the (actual, legit) MBTI I was 19, and I got ENFP. The second time I took it, I was in my mid-20s and I got ENTJ. The third time, I was in my late 20s, and I got ESTJ. When I used to take the online free versions of these I used to score all over the map, but I pretty consistently score as an ESTJ now (although occasionally I get ISTJ depending on the kinds of introvert/extravert questions they ask. The ESTJ description fits me better, but the ISTJ is pretty darn close.)