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Personality Test Predictive Accuracy
They compare the predictive accuracy of Zodiac signs astrology, the young-ian tests, the big five, and Myers-Briggs. They find that Zodiac signs astrology has 0% predictive accuracy, the young-ian tests have a correlation of 0.11 with outcomes, the big five has a correlation of 0.22, and Myers-Briggs falls in between with a correlation of 0.14.