Try the other test, it gives a neutral option if you're uncertain:
[url]http://www.16personalities.com/free-personality-test[/url]
English
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[u][b]INTP[/b][/u] - MIND - [i]Introvert (28%) [/i] - ENERGY - [i]Intuitive (35%) [/i] - NATURE - [i]Thinking (27%)[/i] - TACTICS - [i]Prospecting (10%)[/i] - IDENTITY - [i]Assertive (26%)[/i] Thoughts?