There are many factors that contribute towards employees performing their jobs effectively and efficiently. Stup (2003) noted that it is extremely important that the employees have the proper training, knowledge, skills and attitudes if they are to perform well in their jobs. Van der Merwe (2008) observed that there is a close association between work performance and job satisfaction, career growth, remuneration and non-monetary rewards such as recognition. Factors that are external to the worker such as the working environment, standard operating procedures, facilities and equipment required for the tasks and the management style of the leaders also influence how workers perform their jobs. Exposure to occupational stress for long periods of time has also been found to not only affect employees physical and psychological health but also their work performance (Finn and Tomz, 1998).