WHAT IS THE HORN EFFECT?
Office politics and biases affect many, though not noticed all the time. The Horn effect is a cognitive bias that happens when we make a snap judgment based on a negative trait.
Example: Suppose you meet your office boss who is bald and you suddenly remember a school teacher who was bald and had bullied you. You start to compare both arbitrarily which happens to affect the relationship between you and your boss.
The Horn effect can limit the options and can lead to serious consequences.
WHERE DOES THE CONCEPT COME FROM?
The horn effect offers a counterpart to the HALO Effect, a term coined by psychologist Edward Thorndike in 1920. Thorndike found the HORN effect to hold true for negative characteristics.
Officers who gave soldiers a low rating in one category tended to apply an assumption of inferiority across the board, thereby creating a negative impact.