According to the APA Dictionary of Psychology, the Myers-Briggs Type Indicator (MBTI) is regarded as having little credibility among research psychologists. This reflects a consensus in the scientific community that questions the MBTI's scientific validity, especially in terms of its reliability and predictive power.
A 2025 systematic review found that 50% of MBTI test-takers receive a different type when retested, highlighting serious concerns about its consistency. While some studies acknowledge acceptable reliability for certain MBTI subscales, the central issue is the test's forced binary type categorization, which is not supported by empirical evidence.
Overall, the APA and most independent researchers view the MBTI as lacking strong scientific validity, especially when compared to more robust personality assessments like the Big Five. This skepticism is echoed across multiple independent sources and systematic reviews.