This descriptive study investigated the levels of private school administrators' managerial characteristics and behavior and the differences and correlations between the administrators' and the teachers' perceptions when the respondents were taken as a whole and when they were grouped according to administrative position,age,gender,educational attainment,teacher population and student population. The respondents were 60 school administrators and 188 teachers randomly selected in 1988-1989 in the City of Iloilo. The data were gathered through a questionnaire containing a two-part modified version of Harvey's Administrative Rating Scale which had been validated by a five-man jury of experts. Statistical treatments consisted of the mean, the Pearson r, and analysis of variance. The significance of both correlations and differences was set at the .05 level. The results of the study showed that when the private school administrators were taken as a whole and when grouped as to various categories, they possessed very good managerial characteristics and manifested very good behavior. Significant differences existed between the perceptions of both teachers and administrators as to characteristics and behavior of the administrators. The administrators rated themselves higher than the teachers did. Although gender did not significantly influence the administrators' characteristics and behavior, their position,age,educational attainment,teacher population and student population were significant factors.The administrators in elementary schools, in the old group, those with graduate degrees and those with large teacher and student population were significantly more ready and more capable of performing administrative tasks. Iloilo City private school administrators, therefore, should maintain their very good managerial characteristics and behavior and should endeavor to improve them. They should,however, improve their emotional balance and keep their emotions from unduly affecting their decisions. They should, however, improve their emotional balance and keep their emotions from unduly affecting their decisions. They should initiate and encourage open communication between themselves and their subordinates. Knowledge of their strengths and weaknesses would enable administrators to maintain their good points and strengthen or improve their weak areas as administrators.Improvement might be done through reading of literature and researches related to their work, participating in management workshops and seminars on management and human relations to update their knowledge of current trends in their knowledge of current trends in their field of interest, having linkages and consortia for the sharing of materials, faculty and resources with other colleges subscribing to professional journals and other publications to enable them to keep abreast with the latest developments, and engaging in periodic self-examination and evaluation on their performance, characteristics, and behavior.