It has been argued that leader-member exchange (LMX) and perceived organizational support (POS) influence organizational citizenship behavior (OCB) through the mediation of job definition and felt responsibility. It has also been argued that work autonomy and required interaction serve as situational constraints on OCB. In other words, work autonomy and required interaction will interact with both LMX and POS in determining OCB. Data from this field study does not support the mediation role of either job definition or felt responsibility. Although LMX and POS were found to relate to job definition and felt responsibility, they were unrelated to employees' OCB as rated by their supervisors. The data provides partial support for the hypotheses that work autonomy moderate the relationship...[ Read more ]

It has been argued that leader-member exchange (LMX) and perceived organizational support (POS) influence organizational citizenship behavior (OCB) through the mediation of job definition and felt responsibility. It has also been argued that work autonomy and required interaction serve as situational constraints on OCB. In other words, work autonomy and required interaction will interact with both LMX and POS in determining OCB. Data from this field study does not support the mediation role of either job definition or felt responsibility. Although LMX and POS were found to relate to job definition and felt responsibility, they were unrelated to employees' OCB as rated by their supervisors. The data provides partial support for the hypotheses that work autonomy moderate the relationship between LMX and POS and OCB. Discussions are provided regarding the nonsignificant results and the implications for future research.