Why do some managers intentionally give an employee a higher rating than deserved? What are the disadvantages of biased ratings? How could this tendency be prevented?

Why Managers Give Higher Ratings?

Read:  

Answer this question:

1. Why do some managers intentionally give an employee a higher rating than deserved? What are the disadvantages of biased ratings? How could this tendency be prevented?

120-150 words

Due: 9/17 Tuesday