There are a variety of factors that can affect the overall performance rating of an individual. Aguinis (2009) defines two methods (judgmental and mechanical) for reaching an overall score and states that the mechanical approach is preferable in most cases, particularly if performance objectives are not weighted. Go to page 147 and review Case 6-2. Discuss the implications of the judgmental and mechanical methods of assigning performance scores. Based on Chapter 6 text on Aguinis (2013), what are rater errors? How do they affect the performance management system? What type of training should raters receive ?.