Final answer:
Managers should focus on evaluating employees based on specific behaviors exhibited on the job to avoid stereotyping and errors, rather than relying on personal characteristics or educational background which can lead to bias.
Step-by-step explanation:
Managers can reduce errors, including stereotyping, by evaluating employees based on specific behaviors exhibited on the job. Evaluating employees based on their personal characteristics or educational background can lead to biases and stereotypes, such as assuming younger employees are less responsible. The process of building self-awareness for career development involves exploring personal characteristic categories, but for a professional evaluation, focusing on specific behaviors that directly relate to job performance is essential. These behaviors are indicative of an employee's ability to fulfill their role effectively and help avoid generalizations based on asymmetric information. It is also important to note that while general job knowledge is a factor, observing actual behaviors provides a more accurate assessment of how an individual will perform in their specific role.