On the one hand, the relationships between any of the four of the five constructs and employee performance are mediated by ILC (for the first construct no mediator was found). On the other hand, the relationship between any of the five constructs and OCB was mediated by ILC and GLC. A possible explanation why GLC played a role in the latter relationships however not in the first might be that OCB is measures the discretionary behavior of employees that is directed at others within the organization (Organ, 1988) so that group processes become more important. Podsakoff et al. (2000) understand OCB as an altruistic behavior, which means that employees are willing to help and assist their co-workers when having problems or when asking for help.