When Cynthia lumps everyone together around the average, or middle, category; this gives the impression that there are no very good or very poor performers on the dimensions being rated, which of these errors has occurred?

A) Personal bias error
B) Recency error
C) Halo error
D) Leniency error
E) Central tendency error

Central Tendency Error

A bias in evaluating others where assessments tend to cluster around a central point, ignoring extreme performances.

Performance Appraisal

A systematic evaluation process in which the work performance of an employee is assessed, typically by their manager, with feedback provided for future improvement.