This document discusses various methods of performance appraisal. It begins by defining performance appraisal as a method to evaluate an employee's performance in terms of quality, quantity, and cost. It then categorizes performance appraisal methods into traditional and modern methods. Some traditional methods discussed include rating scales, checklists, forced choice, critical incident reporting, and confidential reports. Modern methods discussed include management by objectives, 360-degree feedback, assessment centers, and psychological appraisal.