The main thrust of the study was to find out the significance of the mediation of organizational efficacy on the relationship between the ethical climate and team member effectiveness among police officers. The researcher utilized the quantitative, non-experimental design using correlational technique. The respondents were the 367 police non-commissioned officers of Davao City Police Office through stratified random sampling. Adapted questionnaires were administered through online and data were retrieved via Google forms. To analyze the data and answer the study objectives statistical tools used were mean, pearson r and path analysis. The result showed that the level of ethical climate was very high, team member effectiveness was very high and organizational efficacy was very high among police officers. Further, it was revealed that there is significance of the relationship of ethical climate on organizational efficacy; organizational efficacy on team member effectiveness; and ethical climate on team member effectiveness. Furthermore, organizational efficacy has a partial mediating effect on the relationship between the ethical climate and team member effectiveness among police officers.

Keywords : education, ethical climate, team member effectiveness, organizational efficiency, mediation, path analysis, Philippines.