Most organisational and administrative decisions that are related to managing people at work depend on the performance appraisal process. Meanwhile, most organisations are facing many challenges and difficulties such as competition, low productivity, increase in inflation rates and less employee loyalty to organisations which justify the importance of measuring work performance (Landy and Farr, 1983). It was assumed by these authors that performance appraisal should provide enough information to justify the cost of obtaining the information. In addition, the evaluation process should have meaning to the people whose performances have been measured and related to individuals and organisational goals.