A short history of emotional intelligence

The construct, then the boom

The term entered research psychology in 1990, in work by Peter Salovey and John Mayer that framed emotional intelligence as a genuine ability: perceiving, understanding and managing emotion, measurable like other abilities. In 1995 Daniel Goleman’s book carried the idea to a general audience and it detonated. The boom years attached the label to almost any interpersonal virtue and produced claims about its importance that ran far ahead of the evidence, including the famous suggestion that it counted for more than IQ.

The corrections arrived through the 2000s as measurement improved. The strongest claims did not replicate; the construct itself did. Where the boom promised transformation, careful work found something smaller and more durable: real, measurable individual differences that relate modestly to outcomes people care about, and that respond moderately to sustained practice.

What survived scrutiny

Three things, roughly. The domain structure holds up as a way of organising the territory. The split between trait and ability measurement turned out to be fundamental rather than a technicality. And the honest effect sizes, modest but real, survived the hype cycle in both directions: the construct is neither the master key the boom sold nor the nothing the backlash claimed.

A test built after all this should wear the corrections openly, which is why ours prints margins, keeps two tracks separate, and publishes its method.

The rest of this family

Each page here covers one part of the territory: the map starts at what emotional intelligence is.