Describes the development of a measure of emotional intelligence based on the model developed by P. Salovey and J. D. Mayer (1990). A pool of 62 items represented the different dimensions of the model. A factor analysis of the responses of 346 adults (mean age 29.27 yrs) suggested the creation of a 33-item scale. Additional studies showed the 33-item measure to have good internal consistency and test-retest reliability. Validation studies showed that scores on the 33-item measure (a) correlated with 8 of 9 theoretically related constructs, including alexithymia, attention to feelings, clarity of feelings, mood repair, optimism and impulse control; (b) predicted first-year college grades; (c) were significantly higher for therapists than for therapy clients or for prisoners; (d) were significantly higher for females than males, consistent with prior findings in studies of emotional skills; (e) were not related to cognitive ability; and (f) were associated with the openness to experience trait of the big five personality dimensions. (PsycINFO Database Record (c) 2016 APA, all rights reserved)