THE EFFECT OF PERFORMANCE APPRAAISAL IN IMPROVING PRODUCTIVITY IN AN ORGANIZATION ( A CASE STUDY OF EFFISON OIL AND GAS, PORT HARCOURT)
BACKGROUND OF THE  STUDY
			  In any evaluation of the condition necessary for  the growth and survival of an organization, the role of performance appraisal  is a strategic factor. It is believed that both the individual and the  organization need to know how well actual performance is contributing to the  accomplishment of the job plans, the staffing plan, and ultimately the overall  strategic plan of the organization. In addition, the individual employee  requires feedback relative to his or her own goals development, as well as that  relative to management’s expectations.
			  Performance appraisal is a formal and systematic  assessment of an employee to determine the degree to which the employee is  performing his/her job effectively. It is usually made in a prescribed manner  of specific intervals such as quarterly, bi-annually or even annually. Each  employee at one time or the other wants his immediate boss or more still his  employer to assess his on-the-job performance, and where necessary give him  guidelines or advice for improving his efficiency.
			  An effective performance review system serves  these general purposes. In other words, as Nwachukwu (1985)  puts it, “the essence of performance appraisal is to give information for the  promotion, demotion, transfer, pay increase, training and development and  discharge of an employee”.
			  Secondly, it provides employees with constructive  on how they are performing in their jobs as viewed by their managers, thus leading  to increased productivity.
			  Therefore, in any organization, manpower remains  the most prominent and the most valuable assets among other factors of  production. It is this reason performance appraisal is given recognition as a  tool to improve organizational activities.