Which error is demonstrated by generalizing a single positive performance incident to all aspects of performance?

Which error is demonstrated by generalizing a single positive performance incident to all aspects of performance?

• A. Halo Effect
• B. Central Tendency
• C. Horn Effect
• D. Leniency

Answer: (A)

This item hinges on the halo effect—the tendency for one strong positive performance moment to color judgments about all other aspects of performance. When a person delivers a single outstanding incident, an evaluator may infer that they excel across related areas as well, even if there isn’t evidence of high performance in those areas. For example, if someone completes a project exceptionally well, a supervisor might rate their punctuality, teamwork, and communication as outstanding too, simply because the initial impression was very positive. That broad positive cast over multiple dimensions is exactly what the halo effect describes. In contrast, central tendency would push ratings toward the middle, not because of a single incident but as a general avoidance of extremes. Leniency would mean always giving higher ratings overall, without tying it to a specific positive moment. The horn effect is the opposite pattern: one negative trait or incident leads to lower ratings across the board. So, the described scenario aligns with the halo effect because a single favorable performance moment unfairly elevates ratings across all aspects. To reduce this bias, evaluators should use specific behavioral evidence for each dimension and calibrate ratings across multiple observations.

This item hinges on the halo effect—the tendency for one strong positive performance moment to color judgments about all other aspects of performance. When a person delivers a single outstanding incident, an evaluator may infer that they excel across related areas as well, even if there isn’t evidence of high performance in those areas. For example, if someone completes a project exceptionally well, a supervisor might rate their punctuality, teamwork, and communication as outstanding too, simply because the initial impression was very positive. That broad positive cast over multiple dimensions is exactly what the halo effect describes.

In contrast, central tendency would push ratings toward the middle, not because of a single incident but as a general avoidance of extremes. Leniency would mean always giving higher ratings overall, without tying it to a specific positive moment. The horn effect is the opposite pattern: one negative trait or incident leads to lower ratings across the board.

So, the described scenario aligns with the halo effect because a single favorable performance moment unfairly elevates ratings across all aspects. To reduce this bias, evaluators should use specific behavioral evidence for each dimension and calibrate ratings across multiple observations.