Here is a test I put together for fun. The MBTI part is a bit speculative (you might need to adjust your definitions of the MBTT CPs slightly to make them consistent with the corresponding Socionics IM elements -- no guarantee the result will coincide with actual MBTI types, just theoretical ones).
It uses double-checking for each question, so you can change your answer if it doesn't sound right in the second form. I am looking for information about a) how hard it is to take, and b) how reliable the results are/seem to be. It would be helpful to know what you think your type already is and how strongly you agree/disagree with the results you get. Also let me know if you have suggestions for the wording of the questions.
[This post will be edited to fit suggestions as they come.]
Which do you tend to make quickly, taking immediate data into account?
a) decisive statements regarding how your surroundings should be
b) observant statements regarding what your surroundings are like
Which do you tend to make carefully, taking past memories into account?
a) observations about how things tend to interact
b) decisions about how things ought to interact
Which do you consider a central focus more than simply a useful tool?
c) making decisions is a central focus
d) observing things is a central focus
Which do you consider a useful tool more than a central focus?
c) observing things is helpful but not central
d) making decisions is helpful but not central
Which combination of elements would you prefer to work with over an extended period of time?
e) physical and logical elements
f) abstract and logical elements
g) physical and ethical elements
h) abstract and ethical elements
Which combination of elements would you find most difficult over an extended period of time?
e) abstract and ethical elements
f) physical and ethical elements
g) abstract and logical elements
h) physical and logical elements
a -- dynamic | MBTI J
b -- static | MBTI P
c -- rational | Socionics J
d -- irrational | Socionics P
e -- ST
f -- NT
g -- SF
h -- NF
static rational, dynamic irrational = introverted
dynamic rational, static irrational = extroverted