What term describes the phenomenon where a senior makes judgments about a subordinate's overall performance based on one specific event?

The correct term for the phenomenon where a senior evaluates a subordinate's overall performance based on a single specific event is the halo effect. This cognitive bias occurs when someone's assessment of a person in one area influences their overall perception of that person's abilities or characteristics. For example, if a subordinate excels in one aspect of their work, such as presentation skills, the senior might unconsciously generalize that strength to all aspects of the subordinate's performance, overshadowing any weaknesses or areas needing improvement. This can lead to an inflated or skewed view of the subordinate's capabilities based on that one event, rather than a comprehensive evaluation of their overall performance.

The other options do not accurately describe this specific phenomenon. Confirmation bias refers to the tendency to search for, interpret, or remember information in a way that confirms one's preconceptions. Stereotyping involves applying a generalized belief about a group to individuals within that group. Shadowing generally refers to a practice where one individual observes another to learn about their tasks, rather than an evaluative judgment process.