The Big Five Personality Test is by far the most scientifically validated and reliable psychological model to measure personality.
Why the Myers Briggs test is inaccurate?
Some research suggests the MBTI is unreliable because the same person can get different results when retaking the test. This is a shortcoming, because people dont fall neatly into two categories on any personality dimension; instead, people have many different degrees of the dimension, Ashton told Live Science.
How reliable is the Myers Briggs test?
The companys website boasts the assessment has a 90% accuracy rating and a 90% average test-retest correlation, “making it one of the most reliable and accurate personality assessments available.” Many researchers, however, have long questioned the MBTIs scientific merit.