Organizational citizenship behavior (OCB) has been an important and growing
area of research for past two decades. Numerous empirical research have identified
consequences and antecedents of this extra‐role behavior. This study intends to
analyze the influences of job characteristics, job satisfaction, and organizational
commitment on OCB. Therefore, a comprehensive model that includes job
characteristics, job satisfaction, affective commitment, normative commitment, and
OCB at the same is constructed. The model employed by the current thesis proposes
that job characteristics affect OCB through the mediations of job satisfaction, affective
commitment, and normative commitment. In order to test the hypotheses regarding the
relationship between the variables depicted, data was collected from knowledge
workers, who do not work manually and perform well guarded skills that others
outside the work do not have. The sample used in this study is composed of 225
knowledge workers from four different industries, such as Defense, IT‐Telecommunication, Software, and Banking. Data was collected through paper-pen
based questionnaires and web based questionnaires.
The results of the current study indicated that while job satisfaction and
affective commitment fully mediate the relationship between job characteristics and
OCB, normative commitment partially mediates this relationship. This study is
concluded with discussion of the results, implications for managers and human
resource professionals, and directions for future research.
Keywords: Organizational citizenship behavior, job characteristics, job satisfaction,
organizational commitment, affective commitment, normative commitment.