© 2015 World Class HR and Victor Bullara
The assumption for decades was that a person with a high IQ would be successful. What Goleman’s research has shown is that a high IQ in young people was not an indicator for their success in their adult lives. In his search for what was an indicator of success in life, Goleman discovered it was Emotional Intelligence (EQ or EI). How important is Emotional Intelligence to performance? According to John Kotter of Harvard Business School, “Because of the furious pace of change in business today, difficult to manage relationships sabotage more business than anything else—it is not a question of strategy that gets us into trouble, it is a question of emotions.” 
Research tracking over 160 high performing individuals in a variety of industries and job levels revealed that emotional intelligence was two times as important in contributing to excellence than intellect and expertise alone. Additional research has since linked as much as 9 times greater productivity when measuring one's E-Factor - click link below for the white paper documenting this ROI.