How effective do you think it is to give an employee feedback on their performance once a year? If it is effective or ineffective, can you explain why? What are some of the most common performance review (evaluation) errors made by supervisors? They are in out readings and you can search the internet to find many of them...can you discuss and provide an example for at least 5 of the most common performance evaluation errors made by supervisors? What can be done to overcome each of these 5 most common performance evaluation errors made by supervisors