I'm not surprised. Those tests are poor, with their only yes/no answers, when the reality is so much more complex. A lot of those questions can only be answered with "sometimes" or "it depends".
Just a change in mood might change one of the letters.
my last result was
Quote:
ISTJ
Introvert(67%) Sensing(50%) Thinking(1%) Judging(22%)
You have distinctive preference of Introversion over Extraversion (67%)
You have moderate preference of Sensing over Intuition (50%)
You have marginal or no preference of Thinking over Feeling (1%)
You have slight preference of Judging over Perceiving (22%)
I always get introvert, never extrovert, but the others are subject to change.