Not for mine. Upon reading the descriptions, the IFSJ didn't fit me in some major ways and I had a relatively low J (33%). While on the INFP test the lowest I got was 63% (P) (and highest 95% I). However, in the description of INFP, there was nothing I felt was inaccurate about me (ok, I haven't read the entire description yet, but...).
I had a problem with several of the questions on both tests and the 2nd test (where I got INFP) made it much easier to answer the problem questions. It would ask "Do I prefer..." "Do I like..." for example, organization, working according to a routine schedule (it was always related to organization and structure) and every time I would say to myself "YES, I work better with a schedule" or "YES, I prefer ... [structure] but what I prefer and what I do are two different things!" And I thought "Just
try to get me to actually
do it though..." (I try a lot, to organize and be structured and get a daily routine, but time and time again I don't stick to them)
On the test where I got IFSJ, I answered what I
prefer and not what I do, accordingly, it told me I like societal conventions and rules and other things that don't apply to me. On the test where I got INFP, I answered according to what I
do instead of what I prefer - and the description of INFP suited me a lot more - maybe I only think I prefer structure, order and routine
Am I the only one who had qualms about what to answer for the questions?