An attempt was made to determine the presence of subjectivity in the appraisal system of a data processing company. Ninety-one clerks were given individual performance ratings by their supervisors, including an overall rating and ratings on seven performance dimensions. A multiple regression performed on these data resulted in a set of empirical weights. Supervisors were also asked to rank the relative importance of each of the seven dimensions to the clerk job. The mean rankings were regarded as apparent weights. A comparison of the empirical and apparent weights led to the conclusion that supervisors were not rating their employees according to what they said was important for successful performance, thus introducing an element of subjectivity into the system.