Final answer:
Yahoo should consider using a performance management system such as 360-degree feedback. However, there are potential biases and errors to be aware of. To avoid biases, Yahoo could implement calibration sessions and provide training to raters.
Step-by-step explanation:
When considering which performance management system Yahoo should use, it is important to choose a system that aligns with the organization's goals and values. One potential system that Yahoo could consider is the 360-degree feedback method, where feedback is gathered from multiple sources including supervisors, peers, and subordinates. This can provide a more comprehensive view of an employee's performance.
However, there are some potential contamination, rater errors, and biases to be aware of. Contamination occurs when factors outside of an employee's control influence the ratings, such as personal relationships between raters and employees. Rater errors, such as leniency or severity biases, can also impact the accuracy of the ratings.
To avoid biases, Yahoo could implement mechanisms such as calibration sessions where raters discuss and align their ratings, or provide training to raters on fair and objective evaluation practices.