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poll
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don't worry about "getting it right". you can always change your vote later if you want. you can vote on this other poll if you have an extroverted personality type (separated due to technical limitation -- only 10 options are allowed per poll). if you're unsure about your type, choose either the one that seems to make more sense to you, or "i really don't know" instead. it's up to you
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introduction to the model. skip this part if you're already familiar with it
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the mbti (myers-briggs type indicator) is a binary system of personality types, based on four theoretically independent dimensions (with a total of 2⁴=16 possible types), developed originally in the 1940s, and based on theories developed by carl jung about a century ago. since it's binary, it's only intended to assess the dominant aspects of someone's personality (in other words, mental faculties that are more naturally used and expressed)
these are "the four dichotomies" of the mbti model:
social attitude:
introversion (i) — extroversion (e)
perceiving function:
sensing (s) — intuition (n)
judging function:
thought (t) — feeling (f)
primary function:
perception (p) — judgement (j)
unlike diagnostic models, it's focused on your own perceptions of yourself instead of other people's perceptions (which is one of the reasons why it's actually appropriate as a self-administered test, especially for introverts, since it relies on introspection). nonetheless, it's still about your personality, which means it's about the way how your inner experience affects the way you relate to people, and not the other way around
so, on one hand, being an "introvert" for example doesn't necessarily mean you're a quiet person (it just means you feel more at home with less social contact), while, on the other hand, being "primarily intuitive" for example doesn't mean "you're not sensitive" (because it's specifically about the way you form your perceptions, rather than the way you're affected by people and events)
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free tests available online
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these are all just suggestions. none of these is "official" in any way. but i wouldn't trust the official (and paid) one to be any more accurate or reliable than these free online variants anyway
72 quick yes-or-no questions:
http://www.humanmetrics.com/cgi-win/jtypes2.asp
60 questions, each on a 7-point scale from "agree" to "disagree":
http://www.16personalities.com/free-personality-test
28 questions, each with 2 mutually exclusive alternatives:
http://www.celebritytypes.com/test.php
55 questions, each on a 5-point scale from "very inaccurate" to "very accurate":
http://similarminds.com/jung.html
61 questions, each on 5-point scale between two alternatives:
(the description page says it's 24 question, but that is a lie!

http://personality-testing.info/tests/OEJTS/
a quick one from wikipedia (not properly a test. just a neatly arranged description):
http://upload.wikimedia.org/wikipedia/commons/1/1f/MyersBriggsTypes.png
"google is your friend":
(especially if this post is already old by the time you're reading it)
http://www.google.com/search?q=free+mbti+test
(feel free to suggest other links)
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free informative resources available online
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http://www.typelogic.com
http://www.personalitypage.com
http://www.16personalities.com/personality-types
http://www.humanmetrics.com/hr/you/PersonalityType.aspx
http://www.truity.com/view/types
http://www.celebritytypes.com
as you would imagine, there's a wikipedia page for each type, there's a subreddit for each type, and so on. but those are too many to list, and i'm sure you can find them on your own anyway
(feel free to suggest other links)
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and, finally, my own thoughts on the subject
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for some reason, freud's theories (which were based on a pathological view of "the unconscious") gathered momentum and eventually developed into some of the mainstream psych models and mindsets we're familiar with today, while jung's theories (which were based on a non-pathological view) remain "alternative" to this day, receiving very little academic attention. everybody's a critic, but nobody seems to actually want to propose enhancements to the model, which, despite all its flaws, obviously has its merits
besides, i think the number one reason why people claim "the test is completely meaningless and unreliable" is because it's popular in "social psychology" settings (corporate, vocational, educational), so in those contexts people don't really take these tests because they want to, which is obviously simply not going to work. in my opinion that's the main flaw of the mbti (which was actually developed with vocational counselling/selection in mind)
so it's a problem of application (which persists mostly because of cultural factors on one hand and financial interests on the other, since there are people who profit from the indiscriminate use of the official version of the test). the model itself still seems solid enough to me. after years taking these tests from to time out of boredom and curiosity, unofficial mbti variants still seem to me like the most meaningful and (relatively) reliable self-administered tests available (even compared to tests that are seen as scientific and widely used as formal and conclusive diagnostic tools)
and the bottom line is that it's always fun anyway, since there is no pathology implied. you're free to interpret your results any way you want
feel more than free to post on your own thoughts and results, of course
(feel more than free to post on your own thoughts and results, of course)
have fun
