What type of feedback method includes the perspectives of all peers involved?

The correct answer is 360-degree feedback because this method incorporates feedback from multiple sources, including peers, supervisors, subordinates, and sometimes even clients. This holistic approach allows individuals to gain a comprehensive perspective on their performance and behavior from various colleagues who interact with them in different capacities.

360-degree feedback is valuable because it diminishes biases that might occur if feedback were sought from only one source, such as a direct supervisor. By collecting input from a diverse group, employees can receive a more balanced and accurate assessment of their strengths and areas for improvement. This method fosters a well-rounded understanding of an individual's performance and impact within the organization, making it an effective tool for development and appraisal.

In contrast, the other options focus on different aspects of performance evaluation or management. Management by objectives centers around setting specific goals and measuring success based on those goals. A behaviorally anchored rating scale involves specific criteria for evaluation, relying largely on defined behaviors associated with different performance levels. Forced ranking requires ranking employees against each other, which does not incorporate feedback from peers as comprehensively as the 360-degree approach.