Answer:The halo effect
Explanation:The halo effect is a type of cognitive bias in which our perception of an individual is affected by the impression we have about them.
The overall impression you have about someone will affect how you see them , if you your impression of a particular individual is that they are smart , it is likely that you will even overlook anything that may prove otherwise. This is because you associate them with everything positive.
The manager's impression is that she is a poor performer such that even when she does well , the manager's impression of her has defined her character as poor.
