Halo Effect and the Horn Effect

These are cognitive biases that influence our perception of others based on a single trait or characteristic. The Halo Effect occurs when we form an overall positive impression of a person based on one positive trait or quality they possess. For example, if someone is physically attractive, we may assume they are also intelligent, kind, and successful. This bias can lead us to overlook or downplay negative traits or behaviors because our positive impression of the person is so strong. On the other hand, the Horn Effect is the opposite of the Halo Effect. It occurs when we form an overall negative impression of a person based on one negative trait or quality they possess.