Sam takes great care every six months to complete a formal performance appraisal of the employees in his department. He understands that the information he collects on each employee for this purpose can help him identify and plan any additional training, experience, or other improvement that employees require. It also allows him to provide feedback and coaching to each individual employee as well as to his department as a whole. Based on this information, we can see that Sam clearly agrees with which specific purpose of performance appraisals