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Concept

Negativity bias

Negative things affect us more than positive things of the same intensity: we notice them sooner, they weigh more, and we remember them better.

In Spanish
Sesgo de negatividad
Origin
Baumeister et al. (2001); Rozin and Royzman (2001)

What problem it addresses

Explains why one bad experience can erase several good ones and why errors weigh so heavily in how a service is judged.

An example

An illustrative example: a service that works well at four moments and fails at one.

What happenedWhat happened: four good moments and one bad one
Four good moments and one bad one.
What weighs in memoryIn memory: the failure takes up almost everything
The failure can weigh more than the four successes.

The failure did not last longer than the other moments. Negative things simply weigh more in the balance.

Why it happens

  1. Bad things catch our attention sooner.

  2. We process them in more detail.

  3. And they leave a mark that lasts longer.

Applications in design

  • Use it like this

    Prioritize removing failures and moments of friction over adding extras.

  • Avoid

    Using alarmist messages to grab attention.

  • Don’t fall for it

    When judging something, also list what went well.

Bad > good

What the research says

After reviewing studies from very different domains, from relationships to learning, Baumeister et al. (2001) conclude that bad has a stronger effect than equivalent good.

Solid evidence. Rozin and Royzman (2001) reached the same conclusion by another route.

Authors and works

  1. 2001

    Roy Baumeister et al.

    Reviewed the evidence across many areas of psychology.

  2. 2001

    Paul Rozin and Edward Royzman

    Described the ways in which the negative dominates.

Sources

Academic reviews

Last reviewed: