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BIAS OF THE WEEK

Peak-End Rule

Patients A and B underwent the same procedure. It lasted 8 minutes for A and 24 for B. Both reported a similar pain level overall.

For A, the procedure ends right at a time of high pain, whereas for B it ends at a time of less intense pain.

Although B’s procedure takes three times as long as A’s, A evaluates it as worse.

We remember and judge our experiences based on their peak and ending.

See the full study here :

Kahneman, D. (2012). Thinking, fast and slow. Penguin.