In this study, I would review some ways in which the term judgement has been employed in philosophy, psychiatry, psychology and psychoanalysis and compare judgement and reality testing. Finally, I would discuss anticipation, appropriateness, and disturbances in good judgement. In classical philosophy, judgement referred to a quality of mind. And Kant thought that judgement is a bridge between understanding and reason. In psychiatry, judgement has been assessed by self-awareness, planning ability and common sense. In psychology, it has been thought as discrimiability. In psychoanalysis, Freud believe that judgement replace the repression of those ideas that produce pain and is related reality-testing because of a central aspect of all secondary process thinking. Judgement consist of anticipation and appropriateness. And good judgement can be concep tualized as being vulnerable to interferences from id, superego, reality, physiological factors, or other ego sources.