Güntert, StefanStrubel, Isabel TeresiaKals, ElisabethWehner, Theo2017-08-182017-08-1820160022-45451940-1183http://hdl.handle.net/11654/25287Volunteers’ motives have been differentially linked to various aspects of successful volunteering. Using self-determination theory, we propose that volunteer functions are systematically related to the experience of self-determined versus controlled motivation. This “quality ofmotivation,” in turn, explains why motives are differentially associated with satisfaction. We conducted two studies: Study 1 (N1 = 824) addressed motives, quality of motivation, and satisfaction; Study 2 (N2 = 323) additionally examined function-specific benefits and the extent to which they match volunteers’ motives. Overall, our hypotheses were supported: values, understanding, and social justice motives were positively associated with relatively self-determinedmotivation (RSM), whereas career, social, protective, and enhancement motives showed negative correlations. The relationships between motives and satisfaction were partially mediated by RSM. Concerning benefits, Study 2 corroborated these findings for values, protective, enhancement, and social justice. This research introduces a new perspective on the quality of volunteers’ motives—with theoretical and practical implications.en01A - Beitrag in wissenschaftlicher Zeitschrift310-327