This study was conducted to examine the practices of the current Result-Oriented Appraisal ofrnPrincipals ' Pelformance in Guji Zone and determining its effectiveness. To this end answers tornbasic questions pertaining to the purpose, process and criteria of ROAPP, competence ofrnappraiser, and major problems of implementing ROAPP were sought. The study encompassed 7rnworedas of the zone selected based on purposive sampling technique. Information was solicitedrnfrom the sample respondents; 113 appraisees and 24 appraisers through questionnaire whichrnwere field-tested before distribution in woredas not included in the sample. Interviews were alsornheld with 7 WECBO officials and 1 ZECBO expert. Statistical tools such as chi-square,rnspearman- rank order correlation, mean and percentage were used for analyzing the data. Thernfinding of the study showed that though, both appraisees and appraisers seems to havernawareness about the intended purposes of ROAPP, the extent of achievement of these purposes:rnformative and summative purposes were found to be inadequate; the former being morerndissatisfactolJl than the latter. The administration of the process of ROAPP was also a mixture ofrnpoor and fair. The appraisal criteria were found to be defective, and hence inappropriate tornmeasure the pelformance of principals fairly and objectively. It was also found out that therndesignated appraisers lack competence to appraise effectively, mainly because of their numberrnbeing small compared to principals, and their workplace being far from schools. Nevertheless,rnmost of the appraisees preferred to be appraised by them if problems for the incompetence are tornbe improved or solved. In general, the system was perceived to be ineffective in attaining thernoverall objective which it was intended to serve. It would be, therefore, recommended thatrnnecessary revisions and adjustments in which the process of ROAPP is administered as requiredrnby the system ought to be made. Of these solving problems related to appraisers, improvingrntechnical and conceptual capacity of participants are the major ones.