An employee receives uniformly high ratings across all performance dimensions despite clear evidence of weakness in one area. This most likely reflects which rating bias?
ACentral tendency error
BRecency effect
CHalo error
DContrast effect
Halo error occurs when a rater's overall impression of an employee colors ratings across all dimensions, leading to uniformly high (or low) ratings regardless of actual dimension-specific performance. The rater fails to discriminate between dimensions. Central tendency would produce all-average ratings; recency would overweight recent events; contrast effects would distort ratings based on comparison with other employees.
Question 2 True / False
Behavioral observation scales (BOS) and behaviorally anchored rating scales (BARS) were developed primarily to reduce the subjectivity of performance ratings.
TTrue
FFalse
Answer: True
Both BOS and BARS anchor ratings in specific, observable behaviors rather than abstract traits. BARS provide behavioral examples at each scale point so raters can match observed behavior to scale anchors. BOS ask raters to indicate how frequently specific behaviors occur. By grounding evaluation in concrete behavioral descriptions derived from job analysis, both formats reduce the ambiguity that allows rater biases to influence ratings.
Question 3 Short Answer
Why does performance appraisal often fail to accomplish its developmental purpose even when organizations invest heavily in the process?
Think about your answer, then reveal below.
Model answer: The dual purpose creates a fundamental tension: when appraisals are used for administrative decisions (pay, promotion), employees are motivated to present themselves favorably rather than honestly discuss weaknesses. This defensive posture undermines the developmental goal of identifying areas for improvement. Additionally, raters are reluctant to give negative feedback when they know it affects compensation.
This tension between administrative and developmental purposes is well-documented. Some organizations attempt to separate the two functions into different conversations or time points. Research suggests that when the stakes are high (pay and promotion on the line), both raters and ratees behave in ways that undermine honest performance communication. Raters inflate ratings to avoid confrontation and maintain relationships; ratees focus on impression management rather than genuine self-assessment.
Question 4 Multiple Choice
Which of the following is the strongest argument against using trait-based rating scales (e.g., rating 'leadership' or 'initiative' on a 1-5 scale) for performance appraisal?
ATraits are irrelevant to job performance
BTrait scales are too expensive to develop
CDifferent raters may interpret abstract trait labels differently, reducing inter-rater reliability and making ratings difficult to defend legally
DEmployees prefer not to be rated on personality characteristics
The fundamental problem with trait scales is ambiguity. What counts as '4 out of 5 on initiative' is left to each rater's interpretation, producing low inter-rater agreement. This makes ratings unreliable, hard to use for feedback (what specifically should the employee do differently?), and legally vulnerable (the employer cannot clearly articulate what was measured). Behaviorally anchored scales address this by defining each rating level with specific, observable behaviors.