Mine is ChrisSamsDad - everyone has there own personality, it's not useful or even possible to assign you to a type like proponents of Meyers-Briggs try, there's no evidence to back it up. People will get different values when they re-take - there's nothing to baseline it against - all it can tell you is the ISFP scorers will give certain answers to the questions in the test.
It was basically just made up one day by an untrained American woman and spiced-up by her crime novelist daughter.