The study of the differences of appraisal results by self and appraisal results by Line-manager in performance appraisal

By the analysis of 387 questionnaires, this paper aims to study the relationship of the differences between the appraisal results of demographic characteristic variables and various appraisal subjects according to the analysis of dissimilarities of appraisal results by self performance appraisal and manager performance appraisal subject to demographic characteristic variables. The analysis of these questionnaires reveals that the results of self performance appraisal differ from manager performance appraisal apparently in varying degrees on length of service and post level meanwhile the differences on gender, age, academic background and job-hopping times. At the end, the proposal of how to increase the reliability and validity of performance appraisal data are given according to this conclusion.