Dr. Reuven Bar-On is an internationally known expert and pioneer in the field of emotional intelligence and has been involved in defining, measuring and applying various aspects of this construct since 1980. The “Bar-On model” is described as one of three leading approaches to emotional intelligence in Spielberger’s Encyclopedia of Applied Psychology [2004]. He coined the term “E.Q.” (“Emotional Quotient”) in 1985 to describe his approach to assessing emotional and social functioning. (Source)