Beyond the Call of Duty: A Field Study of Extra-Role Behavior in Voluntary Organizations
研究了志愿组织成员参与角色外行为（如电话募捐）的影响因素，发现情感承诺中介内在满意度与志愿行为的关系，且该效应仅存在于服务型组织中。
The present study investigated factors influencing voluntary organization members' engaging in a specific extra-role behavior, participation in a telethon, on behalf of their organizations. Affective organizational commitment was hypothesized to mediate the relationship between intrinsic satisfaction and the voluntarism criterion, and organization purpose (service vs. non-service) and organization membership size were hypothesized to moderate the relationship between commitment and voluntarism. PROBIT regression analyses indicated that affective commitment explained the voluntarism effects of intrinsic satisfaction. The effect of commitment on voluntarism was found to occur only among service organizations. Although it did not moderate the effect of commitment, size was negatively related to voluntarism.