The present study tested key tenets of the Psychology of Working Theory (PWT) in a sample of 526 racially and ethnically diverse employed adults. The authors investigated how economic resources and marginalization predicted decent work through experiences of work volition and career adaptability. Support for the hypotheses was mixed. There was a direct, negative relation between marginalization and decent work; a direct, positive relation between economic resources and work volition; and a direct, negative relation between marginalization and work volition. There was a positive relation between work volition and career adaptability as well as with decent work. Work volition was also found to significantly mediate the relations between marginalization and economic resources to decent work. These results suggest that the primary reason why greater economic resources and lower experiences of marginalization predict engaging in decent work is attributable to an increased sense of choice in one’s career decision making. Results suggest the need for further investigation using the PWT to understand how racially and ethnically diverse employed adults secure decent work. Practical implications are discussed.