A similar theory that has enjoyed much more success holds that there are likely at least two types of intelligence, primarily IQ, the intelligence quotient, and EQ, the emotional-intelligence quotient.  Many believe that EQ matters more than IQ in terms of potential business or personal success. Additionally, there are a number of critiques of IQ tests that apply regardless of which type of intelligence it measures.  First, IQ tests are highly subjective in their scoring between cohorts.