Why the Myers-Briggs test is totally meaningless

Definition via Wikipedia:

The Myers-Briggs Type Indicator (MBTI) assessment is a psychometric questionnaire designed to measure psychological preferences in how people perceive the world and make decisions.[1][2][3] These preferences were extrapolated by Katharine Cook Briggs and Isabel Briggs Myers from the typological theories proposed by Carl Gustav Jung, and first published in his 1921 book Psychological Types (English edition, 1923[4]). Jung theorized that there are four principal psychological functions by which we experience the world: sensation, intuition, feeling, and thinking.[5] One of these four functions is dominant most of the time.

Why the Myers-Briggs test is totally meaningless

by via Vox

The Myers-Briggs Type Indicator is probably the most widely used personality test in the world.

Myers-Briggs_300pxAn estimated 2 million people take it annually, at the behest of corporate HR departments, colleges, and even government agencies. The company that makes and markets the test makes somewhere around $20 million each year.

The only problem? The test is completely meaningless.

“There’s just no evidence behind it,” says Adam Grant, an organizational psychologist at the University of Pennsylvania who’s written about the shortcomings of the Myers-Briggs previously. “The characteristics measured by the test have almost no predictive power on how happy you’ll be in a situation, how you’ll perform at your job, or how happy you’ll be in your marriage.”

The test claims that, based on 93 questions, it can group all the people of the world into 16 different discrete “types” — and in doing so, serve as “a powerful framework for building better relationships, driving positive change, harnessing innovation, and achieving excellence.” Most of the faithful think of it primarily as a tool for telling you your proper career choice.

Carl Jung in 1960. Douglas Glass/Paul Popper/Popperfoto/Getty Images

Carl Jung in 1960.
Douglas Glass/Paul Popper/Popperfoto/Getty Images

But the test was developed in the 1940s based off the untested theories of an outdated analytical psychologist named Carl Jung, and is now thoroughly disregarded by the psychology community. Even Jung warned that his personality “types” were just rough tendencies he’d observed, rather than strict classifications. Several analyses have shown the test is totally ineffective at predicting people’s success in various jobs, and that about half of the people who take it twice get different results each time.

Yet you’ve probably heard people telling you that they’re an ENFJ (extraverted intuitive feeling judging), an INTP (introverted intuitive thinking perceiving), or another one of the 16 types drawn from his work, and you may have even been given this test in a professional setting. Here’s an explanation of why these labels are so meaningless — and why no organization in the 21st century should rely on the test for anything.

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