Behavioral Observation Scales (BOS): The Behavioral Observation Scales (BOS) is a list of “critical” behaviors, which the supervisor has to rate in terms of frequency. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostEFQM Model Next PostReward Interdependence