Tool comparisons

Reputed, valid and reliable personality assessment instruments are at the foundation of organisation's decisions around people, culture and performance. There are over 3000 different personality assessment instruments.  Our Tool Comparison table compares Pro.file with six popular tools including Myers-Briggs, DISC and Predictive Index. With such a wide array of choices on the market, what are the differences and why are some personality tests and assessment tools more accurate in their overall description of an individual?