The document discusses emotional intelligence (EI), its importance in the workplace, and how it can be measured. EI refers to one's ability to perceive, understand and manage emotions. It is a better predictor of job success than IQ. The document outlines four models for measuring EI and compares their validity and reliability. It also provides examples of how assessing candidates' EI can improve employee retention, productivity and cost savings. While EI shows promise, more research is still needed to fully validate assessment tools and understand its applicability across different roles.