Abstract
This study was carried out to know the effect of burnout on organization citizenship behavior (both at individual and organizational level) in which affective commitment and continuance  commitment were researched as mediators. All the public sector hospitals of district Peshawar were the population of the study. Three public sector hospitals female nurses were randomly  selected as sample of the study namely Khyber Teaching Hospital, Hayat Abad Medical Complex and Institute of Radio Therapy and Nuclear Medicine. The result showed a negative direct effect  of burnout on affective commitment and continuance commitment. The direct effect of burnout on organization citizenship behavior at organizational level and organization citizenship  behavior at individual level was also found to be negative. It was found that the direct effect of burnout on organization citizenship behavior at organizational level and organization citizenship  behavior at individual level is greater than its direct effect on affective commitment and continuance commitment. Affective commitment and continuance commitment was found to have significantly positive effect on organization citizenship behavior at organizational level and organization citizenship behavior at individual level. The role of affective commitment as mediator was  found significant. This mediation was more significant for organization citizenship behavior at individual level. Similarly the mediating role of continuance commitment on organization citizenship behavior at individual level and organizational level was found significant as well. It was concluded that affective and continuance commitment is good mediator between burnout  and organization citizenship behavior (individual and organizational level). The study recommends focusing on organization commitment in strategies of minimizing job burnout.
Keywords:   Direct effect, indirect effect, Organization citizenship behavior, Affective commitment, Continuance commitment, Burnout