Abstract: The present study recognize the dimensions of active socialization behavior among Iranian employees and develops a model investigating the intermediating effects of perceived insider position and the controlling effects of supervisors’ traditionality on the relationships between active socialization behavior and outsiders’ socialization effects. Results from 560 outsiders supervisor supported the hypotheses that active socialization behavior was positively related with task performance and social integration through perceived insider position. In addition, supervisors’ traditionality significantly mitigates the effects of outsiders’ active socialization behavior on their perceived insider position, task performance and social integration. Specifically, the effects of active socialization behavior on outsiders’ effects become weaker as supervisors’ traditionality increases. These results suggest that supervisors’ traditionality can be a potential constraint for active Iranian outsiders from gaining insider positionand appropriate socialization effects.