BIAS OF THE WEEK

Peak-End Rule

Trick or treaters received …

  • A large chocolate bar: they rated their happiness with their treat as 7/7
  • A large chocolate bar … and then a piece of chewing gum: they rated their happiness with their treat as 5.9/7

Underwhelming ending can detract from positive peak experiences

See the full study here :

Do, A.M., Rupert, A.V. & Wolford, G. Evaluations of pleasurable experiences: The peak-end rule. Psychonomic Bulletin & Review 15, 96–98 (2008). https://doi.org/10.3758/PBR.15.1.96

Want to know more about biases?

The Ostrich Effect

Third Person Effect

Einstellung Effect

Bandwagon Effect