Emotional intelligence (EI), emotional leadership (EL), emotional quotient (EQ) and emotional intelligence quotient (EIQ), is the capability of individuals to recognize their own emotions and those of others, discern between different feelings and label them appropriately, use emotional information to guide thinking and behavior, and manage and/or adjust emotions to adapt to environments or achieve one's goal(s).' exemplifies more clearly than most the fundamental absurdity of the tendency to class almost any type of behavior as an 'intelligence'... If these five 'abilities' define 'emotional intelligence', we would expect some evidence that they are highly correlated; Goleman admits that they might be quite uncorrelated, and in any case, if we cannot measure them, how do we know they are related? So the whole theory is built on quicksand: there is no sound scientific basis.''EI is compared and contrasted with a measure of abstract intelligence but not with a personality measure, or with a personality measure but not with a measure of academic intelligence.' Landy (2005) Emotional intelligence (EI), emotional leadership (EL), emotional quotient (EQ) and emotional intelligence quotient (EIQ), is the capability of individuals to recognize their own emotions and those of others, discern between different feelings and label them appropriately, use emotional information to guide thinking and behavior, and manage and/or adjust emotions to adapt to environments or achieve one's goal(s). Although the term first appeared in a 1964 paper by Michael Beldoch, it gained popularity in the 1995 book by that title, written by author and science journalist Daniel Goleman. Since this time, EI, and Goleman's 1995 analysis, have been criticized within the scientific community, despite prolific reports of its usefulness in the popular press. Empathy is typically associated with EI, because it relates to an individual connecting their personal experiences with those of others. However, several models exist that aim to measure levels of (empathy) EI. There are currently several models of EI. Goleman's original model may now be considered a mixed model that combines what has since been modeled separately as ability EI and trait EI. Goleman defined EI as the array of skills and characteristics that drive leadership performance. The trait model was developed by Konstantinos V. Petrides in 2001. It 'encompasses behavioral dispositions and self perceived abilities and is measured through self report'. The ability model, developed by Peter Salovey and John Mayer in 2004, focuses on the individual's ability to process emotional information and use it to navigate the social environment. Studies have shown that people with high EI have greater mental health, job performance, and leadership skills although no causal relationships have been shown and such findings are likely to be attributable to general intelligence and specific personality traits rather than emotional intelligence as a construct. For example, Goleman indicated that EI accounted for 67% of the abilities deemed necessary for superior performance in leaders, and mattered twice as much as technical expertise or IQ. Other research finds that the effect of EI on leadership and managerial performance is non-significant when ability and personality are controlled for, and that general intelligence correlates very closely with leadership. Markers of EI and methods of developing it have become more widely coveted in the past decade. In addition, studies have begun to provide evidence to help characterize the neural mechanisms of emotional intelligence. Criticisms have centered on whether EI is a real intelligence and whether it has incremental validity over IQ and the Big Five personality traits. The term 'emotional intelligence' seems first to have appeared in a 1964 paper by Michael Beldoch, and in the 1966 paper by B. Leuner entitled Emotional intelligence and emancipation which appeared in the psychotherapeutic journal: Practice of child psychology and child psychiatry. In 1983, Howard Gardner's Frames of Mind: The Theory of Multiple Intelligences introduced the idea that traditional types of intelligence, such as IQ, fail to fully explain cognitive ability. He introduced the idea of multiple intelligences which included both interpersonal intelligence (the capacity to understand the intentions, motivations and desires of other people) and intrapersonal intelligence (the capacity to understand oneself, to appreciate one's feelings, fears and motivations). The term subsequently appeared in Wayne Payne's doctoral thesis, A Study of Emotion: Developing Emotional Intelligence in 1985. The first published use of the term 'EQ' (Emotional Quotient) is an article by Keith Beasley in 1987 in the British Mensa magazine.