For most of the twentieth century, intelligence meant the capacity to reason with words, numbers and abstractions. Emotions were treated as the enemy of good thinking, disruptions to be controlled rather than resources to be used. Peter Salovey and John Mayer challenged this view in the 1990s when they proposed that the skilful handling of emotion is itself a form of intelligence. Emotional intelligence, they argued, is the ability to reason about emotions and to use emotions to enhance reasoning.
This module, drawing on the work of Marc Brackett, Sarah Delaney and Peter Salovey, sets out what emotional intelligence is, how it can be measured, and why it matters for health, relationships, learning and work. It distinguishes the careful ability based model from looser popular accounts, and it introduces a practical framework of skills that can be learned and strengthened across the whole of life.
Defining Emotional Intelligence
Salovey and Mayer defined emotional intelligence as a set of abilities concerned with the processing of emotional information. In their ability model it comprises four related skills: perceiving emotions accurately in oneself and others, using emotions to facilitate thought, understanding emotions and the way they unfold and combine, and managing emotions to achieve goals. This definition treats emotional intelligence as a genuine intelligence, a capacity to reason with a particular kind of information, rather than as a collection of admirable personality traits. That distinction matters because it makes emotional intelligence measurable through performance tasks that have right and wrong answers, much as traditional intelligence is measured.
The Four Branch Model
The first skill, perceiving emotion, involves reading feelings in faces, voices and situations, including ones own bodily signals. The second, using emotion to facilitate thought, recognises that different moods suit different tasks, so a buoyant mood may aid brainstorming while a more careful mood may aid detailed checking. The third, understanding emotion, involves knowing the causes of feelings, the vocabulary that distinguishes them, and the way one emotion can give rise to another, such as fear hardening into anger. The fourth, managing emotion, involves regulating feelings in oneself and others without suppressing them wholesale, choosing strategies that fit the situation. These branches build on one another, with accurate perception providing the raw material that understanding and management then refine.
Measuring the Ability
Because the ability model treats emotional intelligence as a true capacity, it can be assessed with performance tests rather than self report alone. Instruments such as the Mayer Salovey Caruso Emotional Intelligence Test present tasks, for example identifying the emotion in a face or judging which strategy would best manage a tricky feeling, and score answers against expert and consensus criteria. This approach separates ability based emotional intelligence from mixed models that blend it with traits such as optimism and motivation. The distinction is important because self reported confidence about handling emotions does not always match measured skill, and the two predict different outcomes.
Why Emotional Intelligence Matters
Studies associate higher emotional intelligence with a range of benefits. People who reason well about emotion tend to enjoy better quality relationships, since they read others more accurately and manage conflict more gracefully. In schools, programmes that build emotional skills are linked with improved behaviour, wellbeing and even academic attainment. In workplaces, the ability to perceive and manage emotion supports leadership, teamwork and resilience under pressure. Emotional intelligence is also connected with mental health, as those who understand and regulate their feelings are better protected against the corrosive effects of chronic stress.
A Skill That Can Be Learned
Perhaps the most encouraging message of this research is that emotional intelligence is not fixed. Marc Brackett and colleagues developed structured approaches, such as teaching a richer emotion vocabulary and clear strategies for recognising, understanding and regulating feelings, that strengthen these abilities in children and adults alike. Naming an emotion precisely, pausing before reacting, and choosing a deliberate regulation strategy are learnable habits. Like any skill, emotional intelligence grows with practice, feedback and reflection, which means that the quality of our emotional lives is, to a meaningful degree, within our own hands.