Central tendency: The reluctance to use the extremes of a rating scale and to thereby fail to adequately differentiate employees being rated. 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 PostAssessment centre Next PostImpression management