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The Myers-Briggs Personality Test Is Pretty Much Meaningless

smithsonianmag.com

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Re: The Myers-Briggs Personality Test Is Pretty Much Meaningless

#4
Similar comments have been raised about the MMPI. On a quick look again, I found:

https://www.minnpost.com/second-opinion/2009/08/fascinating-...

he original developers of the MMPI questionnaire went about choosing their "normal" control group. They compared test answers from patients in hospitals for the mentally ill with answers from people working in and visiting those hospitals.

Who’s to say those workers and visitors were mentally healthy?

It's well known that certain kinds of mentally ill people are drawn to working in the mental health industry. I know a psychiatrist who's a narcissist, and a psychiatric nurse who's probably BPD or NPD.

Bootstrapping a test from a hand-picked set of people is just bad methodology.

Re: The Myers-Briggs Personality Test Is Pretty Much Meaningless

#6
The covariance of the Big 5 and MBTI is high. This means that if you give both inventories to the same population you can do a factor rotation of one onto the other with much of the variance being preserved. This has been demonstrated multiple times in the academic literature. I have never read an article against the MBTI that mentioned this, and that's because the people who write these articles do not understand statistics. The MBTI is approximately as valid as the Big 5.

Re: The Myers-Briggs Personality Test Is Pretty Much Meaningless

#7
post #3

What is wrong with recording personality traits of people, and determining correlations between them? Because that is essentially what the test does.

Nothing's wrong with the idea, but the MBTI does it in a way which does not have external validity.

Re: The Myers-Briggs Personality Test Is Pretty Much Meaningless

#8
post #3

What is wrong with recording personality traits of people, and determining correlations between them? Because that is essentially what the test does.

The whole point of the article is that the test does not accurately record personality traits of people or the correlations between them.

I've never bought into the test. IMO, it's much too simplistic to describe human behavior. People don't fit cleanly into one of just a few categories.

Re: The Myers-Briggs Personality Test Is Pretty Much Meaningless

#9
> For example, in the category of extrovert vs introvert, you’re either one or the other; there is no middle ground.

That's not entirely true. The final answer that people wear as a badge is binary, but the result is calculated as a percentage, and usually presented to the test-taker as a percentage.

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