Final answer:
The statement is false; employees receive feedback from multiple sources, not just customers. 360-degree performance appraisals involve feedback from supervisors, peers, direct reports, customers, and the employees themselves.
Step-by-step explanation:
The statement that the most common source for feedback for an employee's performance is the customer is false. Employees commonly receive feedback from a variety of sources, not just customers. 360-degree performance appraisals are an example of a more comprehensive feedback system where supervisors, peers, direct reports, customers, and even the employees themselves rate an employee's performance. This method can provide a more complete picture of performance, revealing different perspectives and fostering greater learning opportunities from the feedback provided. It's important for employees to be open to feedback, whether it's from a manager, peer, or customer, as it's essential for learning and improvement.