Emotional Intelligence (EI) or Emotional Quotient (EQ) is a concept that challenges the assumption that the Intelligence Quotient (IQ) is the best predictor of professional success. Unlike IQ, which proposes to be a measurement of innate potential that is relatively stable, the proponents of EI maintain that it is a continuously developing ability, competency, or skill in which "the sky is the limit" (Segal 1997, p. 19). The same proponents claim that developing one's EQ is the key to succeeding in activities from academics, sales, customer service, and management to improving marriages, mental and physical health, lowering crime, and even an individual's spiritual relationship with God. Research on EI and attempts to apply it constitute extensions of science and technology into the ethical realm. In contrast the critics of EI argue that the concept is too all-encompassing, with EI measurements contributing little beyond existent constructs and its predictive...