Is it like the Myers Briggs, MMPI, or IQ test? Is it like the Myers Briggs, MMPI, or IQ test? September 28, 2015 RTaylor No, Myers Briggs is a personality profile and the MMPI is used to help determine psychiatric wellness. An IQ test measures rational intelligence. The Judgment Index™ is used to determine the capacity for good judgment. September 28, 2015 Tags:Differentiation