When a supervisor's personal opinion of an employee sways the supervisor's measurement of the employee's performance, the supervisor is committing which rater error?

A) halo effect
B) error of central tendency
C) leniency bias
D) contrast error
E) personal prejudice

Halo Effect

A cognitive bias where an individual's overall impression influences their judgment about specific traits or abilities.

Personal Opinion

An individual’s view or judgment formed about something, not necessarily based on fact or knowledge.

Contrast Error

A bias in performance appraisal that occurs when evaluations are influenced by comparing employees against each other instead of against objective standards.