Cognitive bias

Expectation effect

Also known as: Pygmalion effect · Placebo effect
Fairly common#52 of 131 by how common ← All cognitive biases
Dobelli #62

What it is

What we expect to happen changes what we perceive and sometimes what happens, through attention, behaviour and belief.

Example A teacher told a pupil is gifted gives them more attention, and they improve.

Related

Appears in

References

More in “What it means: finding patterns and stories”