Which method involves gathering feedback from various sources about an employee's performance?

The method that involves gathering feedback from various sources about an employee's performance is 360-degree feedback. This approach is comprehensive as it collects evaluations not only from the employee's supervisor but also from peers, subordinates, and sometimes even clients. This multifaceted perspective provides a well-rounded view of the employee's abilities, behaviors, and performance. It highlights not only the strengths but also areas that may need improvement, making it a valuable tool for personal and professional development. The inclusion of diverse feedback sources helps in minimizing bias and promotes a culture of open communication within the organization.

In contrast, traditional reviews typically focus on assessments made by a supervisor alone, which can limit the feedback to a single perspective. Peer assessment involves feedback from colleagues at the same level, but it lacks the comprehensive viewpoint provided by additional sources such as supervisors or clients. Self-assessment allows employees to evaluate their own performance, which can be insightful but may not provide an objective overview that is enhanced through external feedback.